(1986). The American presidents: The office and the men. Connecticut: Grolier Educational Corporation.
استشهاد بنمط شيكاغوThe American Presidents: The Office and the Men. Connecticut: Grolier Educational Corporation, 1986.
MLA استشهادThe American Presidents: The Office and the Men. Connecticut: Grolier Educational Corporation, 1986.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.