O'Hearn, D. J. (1922). Seventy five years at Saint John's Cathedral: Being a history of the parish : its clergy schools and societies with illustrations. s.n..
Lua i Stíl Chicago (17ú heag.)O'Hearn, David J. Seventy Five Years at Saint John's Cathedral: Being a History of the Parish : Its Clergy Schools and Societies with Illustrations. [S,l.: s.n., 1922.
Lua MLA (8ú heag.)O'Hearn, David J. Seventy Five Years at Saint John's Cathedral: Being a History of the Parish : Its Clergy Schools and Societies with Illustrations. s.n., 1922.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.