Dr. Erich Ubelacker · Erich Ubelacker · Sandra D. Ubelacker · SANDRA D. UBELACKER: MELVIN R. DELANEY: DONNA J. ALLAN
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Keyboarding for Canadian Colleges: Third Edition | 978-0-7730-4965-9 (0-7730-4965-7) | 1990 |
| Mastering Keyboarding Skills 1 - 2nd Edition | 978-0-7730-4933-8 (0-7730-4933-9) | 1989 |