J.D. · Joseph C DeVita · Joseph D.
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Database Experts' Guide to Focus | 978-0-07-016605-9 (0-07-016605-6) | 1988 |
| The Database Experts' Guide to Focus | 978-0-07-016604-2 (0-07-016604-8) | 1988 |
| The database experts guide to FOCUS | 978-0-07-076609-9 (0-07-076609-6) | 1988 |