| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Cacti of Texas: A Field Guide, with Emphasis on the Trans-Pecos Species | 978-O-89672-611-6 (O-89672-611-8) | 2008 | A. Michael Powell · James F. Weedin |
A. P. · A. Powell · s. a. · S P · Shirley Powell