APA (7th ed.) Citation

Greenewalt, G. H. (1968). Bird song: Acoustics and physiology. Smithsonian Institution.

Chicago Style (17th ed.) Citation

Greenewalt, Granford H. Bird Song: Acoustics and Physiology. Washington: Smithsonian Institution, 1968.

MLA (9th ed.) Citation

Greenewalt, Granford H. Bird Song: Acoustics and Physiology. Smithsonian Institution, 1968.

Warning: These citations may not always be 100% accurate.