| title | ISBN-13 | year of publica- tion |
|---|---|---|
| Applied Physical Geography: Geosystems in the Laboratory | 978-0-13-133093-1 | 2006 |
| Geosystems: An Introduction to Physical Geography | 978-0-13-153117-8 | 2005 |
| Student Study Guide for Geosystems, Sixth Edition | 978-0-13-133092-4 | 2005 |
| Study Guide for Elemental Geosystems | 978-0-13-154765-0 | 2006 |
R.C. · Robert Christ · Robert Christenson · Robert Christgau · Robert Christian · Robert Christie · Robert Christoph · Robert Crichton · Robert Crockett · Robert W. Christopherson · Roberto Cristi · Rupert Christiansen