| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Study guide, Principles of economics 3/e: Ryan C. Amacher, Holley H. Ulbrich | 978-0-538-08672-1 (0-538-08672-6) | 1986 |
| Study guide, Principles of microeconomics: Amacher, Sweeney | 978-0-538-08131-3 (0-538-08131-7) | 1980 |
| Study guide to accompany Principles of economics, 2d edition Ryan C. Amacher | 978-0-538-08151-1 (0-538-08151-1) | 1983 |
Jane Osmond · Jen Oshman · Jena Osman · Jheni Osman · Joan Ockman · John Osmond · John Oxenham · John Ozmun