(1948). A guide for the teaching of the history of the United States: A two-year course. [State Department of Education].
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)A Guide for the Teaching of the History of the United States: A Two-year Course. Trenton, N.J: [State Department of Education], 1948.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)A Guide for the Teaching of the History of the United States: A Two-year Course. [State Department of Education], 1948.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.