APA (7th ed.) Citation

Sparks, J., & Soper, T. (1979). Owls: Their natural and unnatural history (1st paperback ed.). Taplinger Pub. Co..

Chicago Style (17th ed.) Citation

Sparks, John, and Tony Soper. Owls: Their Natural and Unnatural History. 1st paperback ed. New York: Taplinger Pub. Co., 1979.

MLA (9th ed.) Citation

Sparks, John, and Tony Soper. Owls: Their Natural and Unnatural History. 1st paperback ed. Taplinger Pub. Co., 1979.