Cita APA (7a ed.)

National Audubon Society & Alden, P. (1998). National Audubon Society field guide to the Pacific Northwest. Knopf.

Cita Chicago Style (17a ed.)

National Audubon Society y Peter Alden. National Audubon Society Field Guide to the Pacific Northwest. New York: Knopf, 1998.

Cita MLA (8a ed.)

National Audubon Society y Peter Alden. National Audubon Society Field Guide to the Pacific Northwest. Knopf, 1998.

Precaución: Estas citas no son 100% exactas.