| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Barron's AP Environmental Science | 978-0-7641-4571-1 (0-7641-4571-1) | 2011 |
| Barron's AP Environmental Science | 978-1-4380-7036-0 (1-4380-7036-5) | 2011 |
| Barron's AP Environmental Science | 978-0-7641-3643-6 (0-7641-3643-7) | 2007 |
G. T. · G Thorpe · Gary S. Thorpe · Gary S. Thorpe M.S. · Gary Thorpe M.S.