D. P. · D. Perry · Devern J. Perry
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| 6,000 most used Century 21 shorthand outlines | 978-0-538-18150-1 (0-538-18150-8) | 1974 | Edward L Christensen |
| College Vocabulary Building | 978-0-538-61413-9 (0-538-61413-7) | 1993 | |