year of publication | ISBN | author(s) | title |
1997 | 978-0-13-619917-5 | Nancy Douglas · Jackie Walker | An Integrated Skills Course for Learners of English: Side Lines (V002) |
'' | 978-0-13-619925-0 | Nancy Douglas · Jackie Walker | An Integrated Skills Course for Learners of English: Side Lines |
1995 | 978-0-13-619933-5 | Steven A. Stupak | Department of Justice Manual |
1997 | 978-0-13-619941-0 | '' | Seven Toeic Tests: Practice for Higher Scores (v. 2) |
| 978-0-13-619966-3 | Practical Guide to Object-Oriented Systems Development |
1997 | 978-0-13-619982-3 | Daniel W. Rossides | Professions and Disciplines: Functional and Conflict Perspectives |
1998 | 978-0-13-620121-2 | Stupak | Seven Practical Tests for the Higher TOEIC |
1968 | 978-0-13-620146-5 | Robert Boguslaw | New Utopians: Study of System Design and Social Change (Spectrum Books) |
1999 | 978-0-13-620246-2 | PRENTICE HALL | M.C. HIGGINS, THE GREAT STUDY GUIDE THIRD EDITION 1994C |
1988 | 978-0-13-620252-3 | Municipal Outdoors | New York Outdoor Sculpture |
'' | 978-0-13-620253-0 | Margot Gayle · Michele Cohen · Art Commission of the City of New York · Municipal Art Society of New York | Art Commission and the Municipal Art Society Guide to Manhattan's Outdoor Sculpture |
1996 | 978-0-13-620329-2 | Hudson Hartmann · Dale Kester | Instructors Manual |
1998 | 978-0-13-620345-2 | H. Vincent Poor · Gregory W. Wornell | Wireless Communications: Signal Processing Perspectives (Prentice Hall Signal Processing Series) |
1997 | 978-0-13-620352-0 | R BENSON ET AL | Looking for answers |
1979 | 978-0-13-620385-8 | New York |
1998 | 978-0-13-620394-0 | Ron Benson · Lynn Bryan · Kim Newlove · Charolette Player · Liz Stenson | Tales - Heroes, Deeds, and Wonders (Collections) |
1979 | 978-0-13-620419-0 | David Maldwyn Ellis | New York: The Empire State |
1980 | 978-0-13-620427-5 | '' | New York, the Empire State: Teacher's manual and tests |
1987 | 978-0-13-620436-7 | New York Institute of Finance | The New York Institute of Finance Guide to Investing |
1989 | 978-0-13-620444-2 | Vartan Gregorian | New York Public Library Desk Reference |
1969 | 978-0-13-620450-3 | David Maldwyn Ellis | New York: the Empire State |
1990 | 978-0-13-620451-0 | Bruce Wetterau | New York Public Library Book of Chronologies |
1988 | 978-0-13-620469-5 | Seymour F Bernstein | Prentice Hall New York tax handbook, 1988 |
1973 | 978-0-13-620476-3 | Pete Alfano | The New York Giants; a new tradition |
'' | 978-0-13-620484-8 | '' | The New York Giants; a new tradition |
1989 | 978-0-13-620485-5 | Seymour F. Bernstein | New York Tax Handbook, 1989 |
1972 | 978-0-13-620500-5 | Jack Curran | New York City high school basketball |
1983 | 978-0-13-620518-0 | Charles Keller | News Breaks |
| 978-0-13-620526-5 | Marty Bell | New York's Jets; the Namath-Ewbank era |
1973 | 978-0-13-620534-0 | '' | New York's Jets; the Namath-Ewbank era |
1974 | 978-0-13-620542-5 | Lew Fishman | The New York Knicks, pride of Gotham (Reward books) |
'' | 978-0-13-620559-3 | Lew Fishman | New York's Mets: Miracle at Shea |
1974 | 978-0-13-620567-8 | Stan Fischler | New York's Rangers: The icemen cometh (Reward books) |
1980 | 978-0-13-620583-8 | Charles Keller | News breaks |
1985 | 978-0-13-620626-2 | New York Tax Handbook 1985 Bernstein |
1976 | 978-0-13-620633-0 | Phillip C Whaley | New York real estate: A study guide for salesmen's and brokers' license examinations |
1975 | 978-0-13-620641-5 | Robert M. Hoffman | News of the Nation: A Newspaper History of the United States |
1976 | 978-0-13-620658-3 | R. Hoffman | News of the Nation |
| 978-0-13-620667-5 | STOKES | Practical Guide Digital Color |
1986 | 978-0-13-620691-0 | S. Bernstein | New York Tax Handbook, 1987 Ed. |
1990 | 978-0-13-620725-2 | Doug Clapp | The Next Bible: Hardware and Software Systems for the Next Computer |
2019 | 978-0-13-620740-5 | J S Ratti · Marcus S McWaters · Leslaw Skrzypek | Precalculus: A Right Triangle Approach, Loose-Leaf Edition Plus Mylab Math with Pearson Etext -- 18 Week Access Card Package |
'' | 978-0-13-620746-7 | Mark Dugopolski | Trigonometry, Loose-Leaf Edition Plus Integrated Review Mylab Math with Pearson Etext -- 18 Week Access Package |
'' | 978-0-13-620749-8 | Judith A. Beecher · Judith A. Penna · Marvin L. Bittinger | College Algebra, Loose-Leaf Edition Plus MyLab Revision with Corequisite Support -- 18 Week Access Card Package (5th Edition) |
'' | 978-0-13-620757-3 | Judith A. Beecher · Judith A. Penna · Marvin L. Bittinger | Precalculus: A Right Triangle Approach, Loose-Leaf Edition Plus MyLab Revision with Corequisite Support -- 18 Week Access Card Package (5th Edition) |
1992 | 978-0-13-620790-0 | Karl H. Vesper | New Venture Mechanics |
2019 | 978-0-13-620793-1 | Joel R. Hass · Christopher E. Heil · Maurice D. Weir | Thomas' Calculus Early Transcendentals Plus MyLab Math with Pearson eText - 18-Week Access Card Package (14th Edition) |
'' | 978-0-13-620794-8 | Joel R. Hass · Christopher E. Heil · Maurice D. Weir | Thomas' Calculus Early Transcendentals Loose-Leaf Edition Plus MyLab Math with Pearson eText - 18-Week Access Card Package (14th Edition) |
2019 | 978-0-13-620801-3 | Joel R Hass · Christopher E Heil · Maurice D Weir | Thomas' Calculus Early Transcendentals Single Variable Loose-Leaf Edition Plus Mylab Math with Pearson Etext - 18-Week Access Card Package |
'' | 978-0-13-620810-5 | Joel R. Hass · Christopher E. Heil · Przemyslaw Bogacki · Maurice D. Weir · George B. Thomas Jr. | University Calculus, Early Transcendentals, Loose-Leaf Edition Plus MyLab Math with Pearson eText - 18-Week Access Card Package (4th Edition) |
2002 | 978-0-13-620816-7 | Lewis M. Barker | Psychology |
2019 | 978-0-13-620820-4 | Claudia Neuhauser · Marcus Roper | Calculus for Biology and Medicine Loose-Leaf Edition Plus MyLab Math with Pearson eText - 18-Week Access Card Package (4th Edition) |
| 978-0-13-620824-2 | Donna Bailey · Diana Webster | Small World: Level 2 - Potamus's Book (People and Their Jobs) (Small World) |
| 978-0-13-620832-7 | Donna Bailey · Diana Webster | Small World: Level 2 - Potamus's Book (Play Book) (Small World) |
| 978-0-13-620840-2 | Donna Bailey · Diana Webster | Small World: Level 2 - Potamus's Book (Teacher's Book) (Small World) |
| 978-0-13-620865-5 | '' | Small World: Level 2 - Smiler's Book (Doctors and Dentists) (Small World) |
| 978-0-13-620873-0 | '' | Small World: Level 2 - Smiler's Book (Play Book) (Small World) |
| 978-0-13-620899-0 | '' | Small World: Level 2 Wonkey Donkey's Book (Shopping And Food) (Small World) |
| 978-0-13-620907-2 | '' | Small World: Level 2 - Wonkey-Donkey's Book (Play Book) (Small World) |
| 978-0-13-620915-7 | Donna Bailey · Diana Webster | Small World: Level 2 - Wonkey-Donkey's Book (Teacher's Book) (Small World) |
1998 | 978-0-13-620956-0 | Underwood | Reading Plus 2 Sb (Bk. 2) |
1997 | 978-0-13-620980-5 | Cunningsworth | Word Power: With Key |
| 978-0-13-620998-0 | Cunningsworth/Ferst | Word Power (No Key) |
1997 | 978-0-13-621004-7 | Joseph F. Callahan · Leonard H. Clark · Richard D. Kellough | Teaching in the Middle and Secondary Schools |
1999 | 978-0-13-621012-2 | F. J. Turner | Social work practice: A Canadian perspective |
1997 | 978-0-13-621020-7 | Michael D. Tuttle | Practical Business Math: An Applications Approach |
1979 | 978-0-13-621037-5 | Ken Metzler | News Gathering |
1985 | 978-0-13-621053-5 | HK | New York State (Insight guides) |
1988 | 978-0-13-621061-0 | George McDonald | New York on 50 Dollars a Day (Frommer's Budget Travel Guide) |
1997 | 978-0-13-621079-5 | Cynthia B. Leshin | Student Resource Guide to the Internet: Student Success Online |
1979 | 978-0-13-621086-3 | John Hulteng | The News Media and What Makes Them Tick |
'' | 978-0-13-621094-8 | John L. Hulteng | News Media: What Makes Them Tick (Perspectives on Mast Communication) |
| 978-0-13-621095-5 | Mcclave | Sm Statistics Business Economics I/M |
1997 | 978-0-13-621103-7 | Mcclave | Sm Statistics Business Economi |
1986 | 978-0-13-621111-2 | Insight Guides | New Zealand (Insight guides) |
1988 | 978-0-13-621129-7 | George McDonald · Susan Poole | New Zealand on 40 Dollars a Day (Frommer's Budget Travel Guide) |
1989 | 978-0-13-621145-7 | Jean Quinchon | Nitrocelluloses: The Materials and Their Applications in Propellants, Explosives and Other Industries (Ellis Horwood Series in Physical Chemistry) |
1998 | 978-0-13-621152-5 | Mcclave | Sm Statistics Business Economi |
| 978-0-13-621178-5 | Donna Bailey · Diana Webster | Small World: Level 2 - Smiler's Book (Teacher's Book) (Small World) |
1997 | 978-0-13-621186-0 | John J. Macionis | Society: The Basics |
1998 | 978-0-13-621194-5 | Macionis | Sm Society: the Basics Instr Guide Vid [VHS] |
| 978-0-13-621210-2 | Macionis | Society: the Basics Demo Interact S/G |
1999 | 978-0-13-621228-7 | Henry Borne · John J. Macionis | Society: The Basicss: Study Guide |
'' | 978-0-13-621251-5 | Dubin | Spectacular Healing Foods |
'' | 978-0-13-621269-0 | Reese Dubin | Miracle Food Cures from the Bible |
1998 | 978-0-13-621277-5 | Uyless Black | Second Generation Mobile and Wireless Networks |
| 978-0-13-621335-2 | Revell | Impact Wb |
| 978-0-13-621343-7 | Revell | Impact Vhs/PAL Vid |
| 978-0-13-621350-5 | Webster | Play Say Video 1: Vhs/PAL |
| 978-0-13-621368-0 | Webster | Play Say Video 1: Users Guide [VHS] |
1997 | 978-0-13-621384-0 | Ellsberger | SDL: Formal Object-Oriented Language for Communicating Systems (2nd Edition) |
1996 | 978-0-13-621442-7 | Joel D. Block | Secrets of Better Sex |
1998 | 978-0-13-621459-5 | Alcock · Carment · Sadava | A Textbook of Social Psychology |
1997 | 978-0-13-621467-0 | Franklin A. Graybill · Hariharan K. Iyer · Richard K. Burdick | Applied Statistics: A First Course in Inference |
1998 | 978-0-13-621483-0 | Graybill | Sm Statistical Methods I/S/M |
1997 | 978-0-13-621541-7 | Lynn Quitman Troyka | Simon & Schuster Quick Access Reference for Writers |
1996 | 978-0-13-621558-5 | William Wresch | A Teacher's Guide to the Information Highway |
'' | 978-0-13-621566-0 | Thomas Dye | Politics in States and Communities |
| 978-0-13-621590-5 | WALENN | Passport Cae TB (Revised) |
1998 | 978-0-13-621608-7 | James R. Evan · David Louis Olson | Introduction to Simulation and Risk Analysis |
1998 | 978-0-13-621616-2 | Robert B. Handfield · Ernest L. Nichols Jr. | Introduction to Supply Chain Management |
1997 | 978-0-13-621624-7 | Linda S. Hjorth · Maria B. Bakalis | Who Do You Think You Are? Interpersonal Interactions |
'' | 978-0-13-621632-2 | Amir Afzal | Unix Unbounded: A Beginning Approach |
1999 | 978-0-13-621715-2 | H. Robert Horton · Allen J. Scism · Laurence A. Moran · Raymond S. Ochs · J. David Rawn · K. Gray Scrimgeour | Principles of Biochemistry |
1997 | 978-0-13-621756-5 | MARTOCCHIO | Test Item File |
'' | 978-0-13-621772-5 | MARTOCCHIO | Instructors Manual |
'' | 978-0-13-621814-2 | Robert A. Rothman Professor Emeritus | Working: Sociological Perspectives (2nd Edition) |
'' | 978-0-13-621822-7 | Roy Andersen · Robert F. Siebert · Jon G. Wagner · Roy R. Andersen · Robert F. Seibert | Politics and Change in the Middle East: Sources of Conflict and Accommodation |
1997 | 978-0-13-621848-7 | Stephen Reid | Prentice Hall Guide for College Writers Brief, The |
1999 | 978-0-13-621855-5 | Stephen Reid | The Prentice Hall Guide for College Writers |
1998 | 978-0-13-621863-0 | '' | The Prentice Hall Guide for College Writers |
'' | 978-0-13-621871-5 | Matthew D. Shank | Sports Marketing: A Strategic Perspective |
| 978-0-13-621913-2 | Allen | Through the Camera's Eye |
1998 | 978-0-13-621947-7 | Robert W. McCormick · Carolee Freer | Realwrite Realtime: Computerized Shorthand Writing System- Basic Theory Notebook |
'' | 978-0-13-622044-2 | Peter Spasov | Programming for Technology Students Using Visual Basic |
| 978-0-13-622077-0 | FISKE COU · RTNEY | Seeing Is Believing |
1998 | 978-0-13-622143-2 | Michael Hogg · Graham Vaughan | Social Psychology |
1973 | 978-0-13-622159-3 | Ruth E Sutter | The next place you come to: A historical introduction to communities in North America |
'' | 978-0-13-622167-8 | '' | The next place you come to: A historical introduction to communities in North America |
1965 | 978-0-13-622183-8 | W.J. Cameron | New Zealand (Spectrum Books) |
1998 | 978-0-13-622200-2 | Frederick R. Troeh · J. Arthur Hobbs · Roy L. Donahue | Soil and Water Conservation: Productivity and Environmental Protection (3rd Edition) |
1966 | 978-0-13-622217-0 | john flint | Nigeria and Ghana |
1997 | 978-0-13-622218-7 | Annenberg/CPB Multimedia Collection | Preview Guide - A World of Art: Works in Progress |
| 978-0-13-622226-2 | Garner | Professional Automotive Technician |
1997 | 978-0-13-622234-7 | Morrow | Sm Statics and Strength Materi |
1977 | 978-0-13-622258-3 | Anna Billion | The New Zarrow Miracle Psychic Healing Power |
1990 | 978-0-13-622267-5 | William Metz | Newswriting: From Lead to 30 |
1993 | 978-0-13-622275-0 | H.M. Gousha (Firm) | New York roadmap: Including mini-maps of Albany-Schenectady-Troy, Binghamton, Buffalo-Niagara Falls ... plus lists of public recreational areas and ... of interest (A Gousha travel publication) |
1972 | 978-0-13-622282-8 | John Drubert | Nifty number nine |
1989 | 978-0-13-622291-0 | Nigel Short | Nigel Short's Chess Skills |
'' | 978-0-13-622309-2 | Pat Nickerson | Nickerson's Four Star Management Workshop |
1977 | 978-0-13-622316-0 | Rosalind D. Cartwright | Night Life (A Spectrum Book S-430) |
1977 | 978-0-13-622324-5 | Rosalind Dymond Cartwright | Night Life: Explorations in Dreaming (A Spectrum book) |
1970 | 978-0-13-622332-0 | Albert J. Guerard · James E. Miller Jr. · Marvin Mudrick · Cecil Scrimgeour · Ian Watt · Vernon Young · Avrom Fleishman · Norris W. Yates | Twentieth Century Interpretations of The Nigger of the "Narcissus": A Collection of Critical Essays |
1969 | 978-0-13-622340-5 | John A Palmer | Twentieth century interpretations of The nigger of the "Narcissus";: A collection of critical essays, |
1989 | 978-0-13-622341-2 | Pat Nickerson | Nickerson's Four-Star Management Workshop |
1974 | 978-0-13-622365-8 | Amphoto | Night photography simplified, (A Modern photoguide) |
'' | 978-0-13-622373-3 | Amphoto | Night photography simplified, (A Modern photoguide) |
| 978-0-13-622374-0 | Word by word: Beginning workbook |
1974 | 978-0-13-622381-8 | Joseph David, Cooper | Nikon-Nikkormat Handbook |
| 978-0-13-622382-5 | Word by word: Intermediate workbook |
1990 | 978-0-13-622390-0 | Gousha · H.M. Gousha (Firm) | United States, Canada, Mexico Road Atlas, 1990 |
1970 | 978-0-13-622423-5 | Margarita Papandreou | Nightmare in Athens |
1990 | 978-0-13-622432-7 | Don Crabb | Getting the Most Out of Ninja |
2000 | 978-0-13-622441-9 | EDWARDS | Plastics Technology Application Design |
'' | 978-0-13-622458-7 | MURPHY | VOICES DEMOCRACY |
1990 | 978-0-13-622465-5 | Gousha | Pocket Nth Americ Rd Atlas1990 |
1982 | 978-0-13-622472-3 | Howard Hill | Nine Magic Secrets of Long Life |
1970 | 978-0-13-622480-8 | Louis Aragon | Nightwalker (Le paysan de Paris) (New library of French classics) |
1990 | 978-0-13-622481-5 | Arliss Burchard | No-Fail Art Projects: 100 Success-Oriented Lessons for the Primary Grades |
1951 | 978-0-13-622498-3 | Barrett Harper, Ed. Clark | Nine Modern American Plays, |
1980 | 978-0-13-622506-5 | I. E. Gaumont · Harold E. Buttram | Nine-Day Inner Cleansing and Blood Wash for Renewed Youthfulness and Health |
1997 | 978-0-13-622515-7 | Alan Agresti · Barbara Finlay | Statistical Methods for the Social Sciences |
1981 | 978-0-13-622522-5 | I. E. Gaumont · M.D. Harold E. Buttram | Nine-Day Inner Cleansing and Blood Wash for Renewed Youthfulness and Health |
1978 | 978-0-13-622530-0 | Darwin Alexander Hindman | Nine men's Morris, and over 800 other indoor games, puzzles, and stunts for all ages |
1982 | 978-0-13-622548-5 | Howard E. Hill | Nine Magic Secrets of Long Life |
1981 | 978-0-13-622555-3 | Schrader | Nine to Five: The Complete Looks, Clothes&Personality Handbook |
'' | 978-0-13-622563-8 | Constance Schrader | Nine to five: A complete looks, clothes, and personality handbook for the working woman |
1983 | 978-0-13-622589-8 | Harry V Lamon | 1983 supplement to The complete professional corporation desk book: Describing changes made by the Tax Equity and Fiscal Responsibility Act of 1982 |
1972 | 978-0-13-622597-3 | Samuel Hynes | Twentieth Century Interpretations of 1984: A Collection of Critical Essays. (20th Century Interpretations) |
'' | 978-0-13-622605-5 | George Orwell · Eric Arthur Blair | Twentieth Century Interpretations of 1984: A Collection of Critical Essays |
1998 | 978-0-13-622606-2 | Amir Afzal | Instructors Manual |
1984 | 978-0-13-622621-5 | Robert (painting) & JANSON, H.W. (sculpture) ROSENBLUM | 19th Century Art |
1972 | 978-0-13-622639-0 | George Heard Hamilton | Nineteenth and Twentieth Century Art Painting, Sculpture (Library of Art History) |
1988 | 978-0-13-622647-5 | Rey M Longyear | Nineteenth-Century Romanticism in Music |
1969 | 978-0-13-622662-8 | R. M. Longyear | Nineteenth-Century Romanticism in Music |
1973 | 978-0-13-622670-3 | Rey M. Longyear | Nineteenth-Century Romanticism in Music (History of Music) |
1966 | 978-0-13-622688-8 | Richard L. Schoenwald | Nineteenth Century Thought: The Discovery of Change (Spectrum Books) |
1967 | 978-0-13-622696-3 | '' | Nineteenth Century Thought: The Discovery of Change (Sources of Civilization in the West) |
1988 | 978-0-13-622697-0 | Rey M. Longyear | Nineteenth-Century Romanticism in Music (PRENTICE-HALL HISTORY OF MUSIC SERIES) |
1983 | 978-0-13-622720-5 | Executive Reports Corporation | The ERC family money book, 1984 |
1984 | 978-0-13-622739-7 | The ERC family money book, 1985 |
1998 | 978-0-13-622748-9 | Kenneth Craven | Programming in QBASIC for Engineering Technology |
1979 | 978-0-13-622779-3 | J. D Garland | 1978 National electrical code questions and answers (A Reward book) |
1978 | 978-0-13-622811-0 | William Wachs | 99 ways to get more sales from existing customers |
1984 | 978-0-13-622846-2 | Avtar Singh · Walter Triebel | The 99000 Microprocessor: Architecture, Software, and Interface Techniques |
1984 | 978-0-13-622853-0 | Avtar Singh · Walter A. Triebel | The 99000 Microprocessor: Architecture, Software, and Interface Techniques |
1987 | 978-0-13-622861-5 | Ernst & Whinney | 1986 Significant State Tax Developments |
1973 | 978-0-13-622894-3 | Eddie Harrison | No Time For Dying |
1987 | 978-0-13-622903-2 | Patricia H. Virga | The Nma Handbook for Managers |
1988 | 978-0-13-622929-2 | Jack B. Helitzer | Nondiscrimination Under Section 89 of the Internal Revenue Code: A Practical Overview |
| 978-0-13-622937-7 | Tax Diary Apptm 1987 |
1985 | 978-0-13-622945-2 | Sarah Skinner Dunn | Noah and the Golden Turtle: Stories from the East and West for the Esl Student |
1983 | 978-0-13-622951-3 | Jasper Dimond | Noah's Ark |
1992 | 978-0-13-622986-5 | John D. Feerick · Henry P. Baer · Jonathan P. Arfa | Nlrb Representation Elections: Law, Practice & Procedures |
1987 | 978-0-13-622994-0 | C. L. Sulzberger | The World and Richard Nixon |
1941 | 978-0-13-623009-0 | J. W. Barlow · Kurt Steel | Noche Oscura En Lima (Spanish Edition) |
1988 | 978-0-13-623018-2 | Emanuel E. Mamatas | The No Hair-Loss Hair Care Book: With Hair Replacement Solutions and Treatments |
'' | 978-0-13-623026-7 | Emanuel E Mamatas | No-hair-loss hair care: With hair replacement solutions and treatments |
| 978-0-13-623082-3 | The No-Drugs Guide to Better Health |
1983 | 978-0-13-623090-8 | Eleonore, Ph.D. Blaurock-Busch | The No-Drugs Guide to Better Health |
1981 | 978-0-13-623108-0 | John Cotton Howell | No Fault Divorce |
1980 | 978-0-13-623140-0 | Mervin Chester Nolte | Nolte's School Law Desk Book |
1988 | 978-0-13-623158-5 | Annette B. Natow · Jo-Ann Heslin | No-Nonsense Nutrition for Your Baby's First Year |
1970 | 978-0-13-623165-3 | Aldert Van der Ziel | Noise. Sources, Characterization, Measurement |
1977 | 978-0-13-623207-0 | Arthur Daigon · Rozanne M. Norko | Nonfiction: Food for Thought |
1986 | 978-0-13-623216-2 | P. A Cook | Nonlinear dynamical systems (Prentice-Hall international series in systems and control engineering) |
1963 | 978-0-13-623223-0 | Andre L. Yandl | Nonalgebraic Elementary Functions |
1987 | 978-0-13-623224-7 | P.A. Cook | Nonlinear Dynamical Systems |
1971 | 978-0-13-623264-3 | Jack M. Holtzman | Nonlinear System Theory: A Functional Analysis Approach (Electrical Engineering) |