Irish National League, P. M. C. (1887). Letter, To: "Dear Sir", From: Hugh McCaffrey, President, and Harry O'Connor, Secretary, January 7, 1887.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Irish National League, Philadelphia Municipal Council. Letter, To: "Dear Sir", From: Hugh McCaffrey, President, and Harry O'Connor, Secretary, January 7, 1887. 1887.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Irish National League, Philadelphia Municipal Council. Letter, To: "Dear Sir", From: Hugh McCaffrey, President, and Harry O'Connor, Secretary, January 7, 1887. 1887.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.