APA

Reilly E. M., Pettingill O. S. & National Audubon Society. (1968). The Audubon illustrated handbook of American birds. New York: McGraw-Hill.

Chicago

Reilly Edgar M, Pettingill Olin Sewall and National Audubon Society. 1968. The Audubon illustrated handbook of American birds. New York: McGraw-Hill.

Harvard

Reilly E. M., Pettingill O. S. and National Audubon Society. (1968). The Audubon illustrated handbook of American birds. New York: McGraw-Hill.

MLA

Reilly Edgar M, Pettingill Olin Sewall and National Audubon Society. The Audubon illustrated handbook of American birds. New York: McGraw-Hill. 1968.