APA (7th ed.) Citation

Friedmann, H. (1942). The natural-history background of camouflage. The Smithsonian Institution.

Chicago Style (17th ed.) Citation

Friedmann, Herbert. The Natural-history Background of Camouflage. Washington, D.C: The Smithsonian Institution, 1942.

MLA (9th ed.) Citation

Friedmann, Herbert. The Natural-history Background of Camouflage. The Smithsonian Institution, 1942.