Easton, D. (1953). Political system: Inquiry in to the state of political science. Alfred A Knopf Inc..
استشهاد بنمط شيكاغوEaston, David. Political System: Inquiry in to the State of Political Science. Alfred A Knopf Inc., 1953.
MLA استشهادEaston, David. Political System: Inquiry in to the State of Political Science. Alfred A Knopf Inc., 1953.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.