| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Complete Guide to Environmental Careers in the 21st Century | 978-1-55963-586-8 (1-55963-586-X) | 1998 |
| The ECO Guide to Careers that Make a Difference: Environmental Work For A Sustainable World | 978-1-55963-967-5 (1-55963-967-9) | 2004 |