| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| North American Owls: Biology and Natural History | 978-1-56098-724-6 (1-56098-724-3) | 1988 | |
| Trogons And Quetzals Of The World | 978-1-56098-388-0 (1-56098-388-4) | 2000 | Paul A. Johnsgard |
J. A. · J. P. · J. Paul · P. A. · Paul A. · Paul A. Johnsgard