B. Keller · Botkin & Keller · Keller Botkin
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Environmental Science: Earth as a Living Planet Eighth Edition | 978-1-118-15892-0 (1-118-15892-X) | 2011 |
| ENVIRONMENTAL SCIENCE, ISV. 8TH EDITION | 978-81-265-3414-2 (81-265-3414-1) | 2010 |