Angle, P. M. (1954). By these words: Great documents of American liberty, selected and placed in their contemporary settings. Rand McNally.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Angle, Paul McClelland. By These Words: Great Documents of American Liberty, Selected and Placed in Their Contemporary Settings. New York: Rand McNally, 1954.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Angle, Paul McClelland. By These Words: Great Documents of American Liberty, Selected and Placed in Their Contemporary Settings. Rand McNally, 1954.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.