Contending theories of international relations : a comprehensive survey

MLA

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

APA

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

Chicago

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