APA (7th ed.) Citation

Allen, T. B. (1987). Guardian of the wild: The story of the National Wildlife Federation, 1936-1986. Indiana University Press.

Chicago Style (17th ed.) Citation

Allen, Thomas B. Guardian of the Wild: The Story of the National Wildlife Federation, 1936-1986. Bloomington: Indiana University Press, 1987.

MLA (9th ed.) Citation

Allen, Thomas B. Guardian of the Wild: The Story of the National Wildlife Federation, 1936-1986. Indiana University Press, 1987.