Cita APA

Spanier, J. (1968). American foriegn policy since world war II (6th ed.). Praeger Pub.

Citación estilo Chicago

Spanier, John. American Foriegn Policy Since World War II. 6th ed. New York: Praeger Pub, 1968.

Cita MLA

Spanier, John. American Foriegn Policy Since World War II. 6th ed. Praeger Pub, 1968.