Cita APA (7th ed.)

Sprunt, A. (1955). North american birds of prey. Harper & Brothers.

Cita Chicago (17th ed.)

Sprunt, Alexander. North American Birds of Prey. New York, USA: Harper & Brothers, 1955.

Cita MLA (9th ed.)

Sprunt, Alexander. North American Birds of Prey. Harper & Brothers, 1955.