توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Lincoln, A., & Fehrenbacher, D. E. (1989). Speeches and writings, 1832-1838: Speeches, letters, and miscellaneous writings, the Lincoln-Douglas debates. Literary Classics of the United States : Distributed by the Viking Press.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Lincoln, Abraham, و Don Edward Fehrenbacher. Speeches and Writings, 1832-1838: Speeches, Letters, and Miscellaneous Writings, the Lincoln-Douglas Debates. New York: Literary Classics of the United States : Distributed by the Viking Press, 1989.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Lincoln, Abraham, و Don Edward Fehrenbacher. Speeches and Writings, 1832-1838: Speeches, Letters, and Miscellaneous Writings, the Lincoln-Douglas Debates. Literary Classics of the United States : Distributed by the Viking Press, 1989.