A & C Black Publishers Ltd · Princeton University Press
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Birds of the Middle East | 978-0-7136-7016-5 (0-7136-7016-9) | 2004 | S. Christensen · Richard Porter |
| Field Guide to the Birds of the Middle East | 978-0-691-12104-8 (0-691-12104-4) | 2004 | Richard Porter · S. Christensen |