توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Szarnicki, H. A. (1975). Michael O'Connor, first Catholic bishop of Pittsburgh, 1843-1860: A story of the Catholic pioneers of Pittsburgh and western Pennsylvania (1st. ed.). Wolfson Pub. Co..

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Szarnicki, Henry A. Michael O'Connor, First Catholic Bishop of Pittsburgh, 1843-1860: A Story of the Catholic Pioneers of Pittsburgh and Western Pennsylvania. 1st. ed. Pittsburgh: Wolfson Pub. Co., 1975.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Szarnicki, Henry A. Michael O'Connor, First Catholic Bishop of Pittsburgh, 1843-1860: A Story of the Catholic Pioneers of Pittsburgh and Western Pennsylvania. 1st. ed. Wolfson Pub. Co., 1975.