APA (7th ed.) Citation

Hartley, G. I. (1922). The importance of bird life: A popular account of its economic significance and conservation. The Century co..

Chicago Style (17th ed.) Citation

Hartley, G. Inness. The Importance of Bird Life: A Popular Account of Its Economic Significance and Conservation. New York: The Century co., 1922.

MLA (9th ed.) Citation

Hartley, G. Inness. The Importance of Bird Life: A Popular Account of Its Economic Significance and Conservation. The Century co., 1922.