APA (7th ed.) Citation

National Geographic Society (U.S) & Alderfer, J. K. (2006). National Geographic: Complete birds of North America. National Geographic Society.

Chicago Style (17th ed.) Citation

National Geographic Society (U.S) and Jonathan K. Alderfer. National Geographic: Complete Birds of North America. Washington: National Geographic Society, 2006.

MLA (9th ed.) Citation

National Geographic Society (U.S) and Jonathan K. Alderfer. National Geographic: Complete Birds of North America. National Geographic Society, 2006.