APA (7th ed.) Citation

Cuthbert, F. J., & Wires, L. R. (1999). Caspian tern: Sterna caspia. Birds of North America, Inc..

Chicago Style (17th ed.) Citation

Cuthbert, Francesca J., and Linda R. Wires. Caspian Tern: Sterna Caspia. Philadelphia, PA: Birds of North America, Inc., 1999.

MLA (9th ed.) Citation

Cuthbert, Francesca J., and Linda R. Wires. Caspian Tern: Sterna Caspia. Birds of North America, Inc., 1999.

Warning: These citations may not always be 100% accurate.