APA (7th ed.) Citation

Shealer, D. A. (1999). Sandwich tern: Sterna sandvicensis. Birds of North America, Inc..

Chicago Style (17th ed.) Citation

Shealer, David A. Sandwich Tern: Sterna Sandvicensis. Philadelphia: Birds of North America, Inc., 1999.

MLA (9th ed.) Citation

Shealer, David A. Sandwich Tern: Sterna Sandvicensis. Birds of North America, Inc., 1999.

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