APA (7th ed.) Citation

Cahalane, V. H., & Baer, J. G. (1962). National parks - a world need. American Committee for International Wildlife Protection.

Chicago Style (17th ed.) Citation

Cahalane, Victor H., and Jean Georges Baer. National Parks - a World Need. New York: American Committee for International Wildlife Protection, 1962.

MLA (9th ed.) Citation

Cahalane, Victor H., and Jean Georges Baer. National Parks - a World Need. American Committee for International Wildlife Protection, 1962.