Cita APA (7th ed.)

Allen, R. P. (1942). The roseate spoonbill. Dover Publications.

Cita Chicago (17th ed.)

Allen, Robert Porter. The Roseate Spoonbill. New York: Dover Publications, 1942.

Cita MLA (9th ed.)

Allen, Robert Porter. The Roseate Spoonbill. Dover Publications, 1942.