C.S. · Clifford E. · Clifford Eugene Shackelford
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Hummingbirds of Texas: with Their New Mexico and Arizona Ranges | 978-1-60344-110-0 (1-60344-110-7) | 2009 | Madge M. Lindsay · C. Mark Klym |
| Hummingbirds of Texas: With Their New Mexico And Arizona Ranges | 978-1-58544-433-5 (1-58544-433-2) | 2005 | Madge M. Lindsay · C. Mark. Klym · Shirley Rucker · Clemente, III Guzman |