Παραπομπή APA

Irwin, W. (1983). America in the world: A guide to U. S. foreign policy. Praeger.

Παραπομπή Chicago Style

Irwin, Wallace. America in the World: A Guide to U. S. Foreign Policy. New York: Praeger, 1983.

Παραπομπή MLA

Irwin, Wallace. America in the World: A Guide to U. S. Foreign Policy. Praeger, 1983.