Cita APA

Spanier, J. W., & Spanier, J. W. (1971). American foreign policy since World War II (4. edition revised.). New York, New York: Praeger.

Citación estilo Chicago

Spanier, John W., y John W. Spanier. American Foreign Policy Since World War II. 4. edition revised. New York, New York: Praeger, 1971.

Cita MLA

Spanier, John W., y John W. Spanier. American Foreign Policy Since World War II. 4. edition revised. New York, New York: Praeger, 1971.