APA (7th ed.) Citation

Pfaltzgraff, R. L. (1977). The study of international relations: A guide to information sources. Gale Research Co..

Chicago Style (17th ed.) Citation

Pfaltzgraff, Robert L. The Study of International Relations: A Guide to Information Sources. Detroit: Gale Research Co., 1977.

MLA (9th ed.) Citation

Pfaltzgraff, Robert L. The Study of International Relations: A Guide to Information Sources. Gale Research Co., 1977.