APA

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

Chicago

Spanier John W, . 1971. American foreign policy since World War II. New York: Praeger.

Harvard

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

MLA

Spanier John W, . American foreign policy since World War II. New York: Praeger. 1971.