APA (7th ed.) Zitazioa

Cohen, B. C. (1965). Foreign policy in american government. Little, Brown and Company.

Chicago Style (17th ed.) Zitazioa

Cohen, Bernard C. Foreign Policy in American Government. Boston: Little, Brown and Company, 1965.

MLA (9th ed.) Zitazioa

Cohen, Bernard C. Foreign Policy in American Government. Little, Brown and Company, 1965.