| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| Introduction to Economics | Paperback | 978-0-03-021838-5 | 1999 |
| Introduction to Economics | Hardcover | 978-0-03-031129-1 | 1995 |
| Introduction to Macroeconomics | Paperback | 978-0-03-021158-4 | 1998 |
| Introduction to Macroeconomics | " | 978-0-03-031133-8 | 1995 |
| Introduction to Macroeconomics | " | 978-0-03-031227-4 | 1995 |
| Introduction to Macroeconomics: Wall Street Journal Edition | " | 978-0-03-021837-8 | 1999 |
| Introduction to Macroeconomics: Wall Street Journal Edition | Hardcover | 978-0-03-021834-7 | 1998 |
| Introduction to Microeconomics | Paperback | 978-0-03-031132-1 | 1995 |
| Introduction to Microeconomics | " | 978-0-03-031219-9 | 1995 |