APA (7th ed.) Citation

Lowther, P. E. (2001). Arctic warbler: Phylloscopus borealis. Birds of North America, Inc..

Chicago Style (17th ed.) Citation

Lowther, Peter E. Arctic Warbler: Phylloscopus Borealis. Philadelphia, Pa.: Birds of North America, Inc., 2001.

MLA (9th ed.) Citation

Lowther, Peter E. Arctic Warbler: Phylloscopus Borealis. Birds of North America, Inc., 2001.