| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Office Machines Course | 978-0-538-13800-0 (0-538-13800-9) | 1979 |
| Office machines course;: Adding and calculating machines | 978-0-538-13790-4 (0-538-13790-8) | 1971 |
| Office machines course: Teacher's edition | 978-0-538-28087-7 (0-538-28087-5) | 1979 |