O'Reilly, R. M. (1877). Letter, To: "Dear Tom" From: "Your affectionate brother, Robert," June 4, 1877.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)O'Reilly, Robert M. Letter, To: "Dear Tom" From: "Your Affectionate Brother, Robert," June 4, 1877. 1877.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)O'Reilly, Robert M. Letter, To: "Dear Tom" From: "Your Affectionate Brother, Robert," June 4, 1877. 1877.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.