| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Algebra Programmed | 978-0-13-021931-2 | 1987 | |
| Algebra Programmed | 978-0-13-021994-7 | 1987 | Robert D. Hackworth |
| Algebra Programmed | 978-0-13-022020-2 | 1987 | |
| Algebra--programmed | 978-0-13-022038-7 | 1978 | |
| Algebra Programmed: Part 1 | 978-0-13-021908-4 | 1987 | Robert D. Hackworth |
| Algebra Programmed: Part 2 | 978-0-13-021916-9 | 1987 | " |
| Algebra Programmed: Part 3 | 978-0-13-021940-4 | 1987 | Robert D. Hackworth · Joseph Howland |
| Algebra: Text: Elementary | 978-0-13-022293-0 | 1974 | etc. |
| Algebra Text: Intermediate | 978-0-13-022400-2 | 1974 | |
| Instructor's manual, Algebra programmed | 978-0-13-022079-0 | 1972 | |
| Interactive Elementary Algebra | 978-0-943202-62-4 | 1997 | Robert D. Hockworth |
H.A. · R. A. · R. H. · Robert A. · Robert H. · Robert H. Alwin Robert D. Hackworth