Lewis R. W. B. & Lewis, N. (1999). American characters: Selections from the national portrait gallery, accompanied by literary portraits. Yale University Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Lewis R. W. B. و Nancy Lewis. American Characters: Selections from the National Portrait Gallery, Accompanied by Literary Portraits. New Haven: Yale University Press, 1999.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Lewis R. W. B. و Nancy Lewis. American Characters: Selections from the National Portrait Gallery, Accompanied by Literary Portraits. Yale University Press, 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.