| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Gregg Expert Speed Building, Series 90 | 978-0-07-073077-9 (0-07-073077-6) | 1985 | |
| Gregg Shorthand Two: A Gregg Text-Kit in Continuing Education | 978-0-07-037770-7 (0-07-037770-7) | 1984 | Louis A. Leslie ยท Charles Rader |