APA aipamena

Farrand, J. (1988). Western birds: An Audubon handbook. New York: McGraw-Hill Book.

Chicago Style aipamena

Farrand, John. Western Birds: An Audubon Handbook. New York: McGraw-Hill Book, 1988.

MLA aipamena

Farrand, John. Western Birds: An Audubon Handbook. New York: McGraw-Hill Book, 1988.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.