Cita APA

Kegley, C. W., & Wittkopf, E. R. (1987). American foreign policy: Patterns and process. New York: Martin Press.

Citación estilo Chicago

Kegley, Charles W., y Eugene R. Wittkopf. American Foreign Policy: Patterns and Process. New York: Martin Press, 1987.

Cita MLA

Kegley, Charles W., y Eugene R. Wittkopf. American Foreign Policy: Patterns and Process. New York: Martin Press, 1987.