APA (7th ed.) Citation

Nol, E., & Humphrey, R. C. (1994). American oystercatcher: Haematopus palliatus. American Ornithologists' Union ; Academy of Natural Sciences.

Chicago Style (17th ed.) Citation

Nol, Erica, and Robert Charles Humphrey. American Oystercatcher: Haematopus Palliatus. Washington, D.C. : Philadelphia, PA: American Ornithologists' Union ; Academy of Natural Sciences, 1994.

MLA (9th ed.) Citation

Nol, Erica, and Robert Charles Humphrey. American Oystercatcher: Haematopus Palliatus. American Ornithologists' Union ; Academy of Natural Sciences, 1994.