Pilgrims' Process, Inc. · University Press of Colorado
| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Bryophytes of Colorado: Mosses, Liverworts, and Hornworts | 978-0-9790909-1-2 | 2007 | William A. Weber |
| Colorado Flora: Eastern Slope, Fourth Edition A Field Guide to the Vascular Plants | 978-1-60732-140-8 | 2012 | " |
| Colorado Flora: Eastern Slope, Third Edition | 978-0-87081-552-2 | 2001 | " |
| Colorado Flora: Western Slope | 978-0-87081-553-9 | 2001 | " |
| Colorado Flora: Western Slope, Fourth Edition A Field Guide to the Vascular Plants | 978-1-60732-142-2 | 2012 | " |
C. W. · C. Wittmann · R. C. · Ronald C. · Ronald W.