Shenk, J. W. (2005). Lincolnns melancholy: How depression challenged a president and fueled his greatness (First Mariner Books ed.). Mariner Book.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Shenk, Joshua Wolf. Lincolnns Melancholy: How Depression Challenged a President and Fueled His Greatness. First Mariner Books ed. Boston: Mariner Book, 2005.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Shenk, Joshua Wolf. Lincolnns Melancholy: How Depression Challenged a President and Fueled His Greatness. First Mariner Books ed. Mariner Book, 2005.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.