| title | ISBN-13 | year of publication |
|---|---|---|
| Brief Principles of Macroeconomics | 978-0-324-59037-1 | 2008 |
| Brief Principles of Macroeconomics | 978-0-324-23697-2 | 2006 |
| Principles of Economics | 978-0-324-58997-9 | 2008 |
| Principles of Economics | 978-0-324-26938-3 | 2003 |
| Principles of Economics | 978-0-03-025951-7 | 2000 |
| Principles of Macroeconomics , 4th | 978-0-324-36021-9 | 2008 |
| Principles of Macroeconomics | 978-0-324-58999-3 | 2008 |
| Principles of Microeconomics | 978-0-324-58998-6 | 2008 |
g G · G. N. · Gregory G. · N.G. · N. Gregory · n.n.