Cita APA

Boyd, G., & Hopple, G. W. (1987). Political change and foreign policies. St. Martin's Press.

Citación estilo Chicago

Boyd, Gavin, and Gerald W. Hopple. Political Change and Foreign Policies. New York: St. Martin's Press, 1987.

Cita MLA

Boyd, Gavin, and Gerald W. Hopple. Political Change and Foreign Policies. St. Martin's Press, 1987.