| title | ISBN-13 | year of publication |
|---|---|---|
| Programmers' Fortran II and IV | 978-0-07-036965-8 | 1966 |
| Programmer's P. L./1 | 978-0-07-036959-7 | 1968 |
| The Programmer's Algol; a Complete Reference | 978-0-07-036963-4 | 1967 |
| The waves of change: A techno-economic analysis of the data processing industry | 978-0-07-036967-2 | 1979 |
C L · C.P. · C.P. Lecht · Charles L. · Charles P. · Philip L.