| title | ISBN-13 | year of publication |
|---|---|---|
| College Keyboarding/ Typewriting: Complete Course | 978-0-538-27887-4 | 1985 |
| College Keyboarding/Typewriting: Intensive Course | 978-0-538-20295-4 | 1986 |
| College Keyboarding/Typewriting: Intensive Course | 978-0-538-20305-0 | 1986 |
| College Keyboarding/Typewriting: Intensive Course | 978-0-538-27578-1 | 1986 |
| College Keyboarding/ Typewriting: Multimedia Learning System to 12r. e | 978-0-538-70147-1 | 1991 |
| Keyboarding/Typewriting: Intermediate | 978-0-538-27588-0 | 1986 |
C.D. · C Duncan · C.H. · C. H. Duncan · Charles D · Charles Duncan · Charles E. · Charles H. · Charles H. Duncan · E. D. · H.D. · H. E.