| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Basic Economics | 978-0-13-059121-0 | 1973 | etc. |
| Basic Economics: Theory and Cases | 978-0-13-059030-5 | 1977 | |
| Macroeconomics: A Programmed Book | 978-0-13-542662-3 | 1974 | etc. |
| Macroeconomics: A Programmed Book | 978-0-13-542563-3 | 1970 | " |
| Macroeconomics: Programmed Book | 978-0-13-542704-0 | 1981 | |