United States. Department of State. Bureau of International Information Program, U.S. Department of State. (2011). Outline of U.S. history. Bureau of International Information Programs, U.S. Department of State.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United States. Department of State. Bureau of International Information Program, U.S. Department of State. Outline of U.S. History. Washington, D.C: Bureau of International Information Programs, U.S. Department of State, 2011.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)United States. Department of State. Bureau of International Information Program, U.S. Department of State. Outline of U.S. History. Bureau of International Information Programs, U.S. Department of State, 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.