APA (7th ed.) Citation

Smith, F. E. (1971). Conservation in the United States: A documentary history. Chelsea House Publ. [u.a.].

Chicago Style (17th ed.) Citation

Smith, Frank E. Conservation in the United States: A Documentary History. New York: Chelsea House Publ. [u.a.], 1971.

MLA (9th ed.) Citation

Smith, Frank E. Conservation in the United States: A Documentary History. Chelsea House Publ. [u.a.], 1971.