Libby Rittenberg Timothy Tregarthen · T.T. · Timothy D. Tregarthen · Timothy Tregarthen
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Printed TB T/A Macroeconomics Tregarthen | 978-1-57259-104-2 (1-57259-104-8) | 1996 |
| Printed TB T/A Microeconomics Tregarthen | 978-1-57259-048-9 (1-57259-048-3) | 1996 |