A.C. · A. E. · C. Engelmann
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| DISTAR Arithmetic I 2nd Edition Presentation Book A | 978-0-574-78351-6 (0-574-78351-2) | 1975 |
| DISTAR Arithmetic I 2nd Edition Presentation Book B | 978-0-574-78352-3 (0-574-78352-0) | 1975 |
| DISTAR Arithmetic I 2nd Edition Presentation Book C | 978-0-574-78353-0 (0-574-78353-9) | 1975 |