APA (7th ed.) Citation

Gabrielson, I. N. (1959). Wildlife conservation (2nd ed.). Macmillan.

Chicago Style (17th ed.) Citation

Gabrielson, Ira N. Wildlife Conservation. 2nd ed. New York: Macmillan, 1959.

MLA (9th ed.) Citation

Gabrielson, Ira N. Wildlife Conservation. 2nd ed. Macmillan, 1959.