Schuman, F. L. (1958). International politics: The western state system in transition. New York: McGraw-Hill book company, inc.
استشهاد بنمط شيكاغوSchuman, Frederick L. International Politics: The Western State System in Transition. New York: McGraw-Hill book company, inc, 1958.
MLA استشهادSchuman, Frederick L. International Politics: The Western State System in Transition. New York: McGraw-Hill book company, inc, 1958.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.