APA (7th ed.) Citation

Dougherty, J. E., & Pfaltzgraff, R. L. (1990). Contending theories of international relations: A comprehensive survey (3rd ed.). Harper & Row.

Chicago Style (17th ed.) Citation

Dougherty, James E., and Robert L. Pfaltzgraff. Contending Theories of International Relations: A Comprehensive Survey. 3rd ed. New York: Harper & Row, 1990.

MLA (9th ed.) Citation

Dougherty, James E., and Robert L. Pfaltzgraff. Contending Theories of International Relations: A Comprehensive Survey. 3rd ed. Harper & Row, 1990.