Παραπομπή σε μορφή APA (7η εκδ.)

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..

Παραπομπή σε μορφή Chicago (17η εκδ.)

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.

Παραπομπή σε μορφή MLA (8th εκδ.)

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.