A. M. · A. Michael · A. P. · A. Powell · M P · M. Powell · Michael Powell
Texas Tech University Press · University of Texas Press
| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Cacti of Texas: A Field Guide | 978-0-89672-611-6 | 2008 | James F. Weedin · Shirley A. Powell |
| Cacti of the Trans-Pecos & Adjacent Areas | 978-0-89672-531-7 | 2004 | James F. Weedin |
| Ferns and Fern Allies of the Trans-Pecos and Adjacent Areas | 978-0-89672-476-1 | 2002 | Sharon C. Yarborough |
| Trees & Shrubs of the Trans-Pecos and Adjacent Areas | 978-0-292-76573-3 | 1998 | |