O''Brien, J. A. (1954). Your bridge to heaven, winning a soul for Christ. The Queen's Work.
Cita Chicago Style (17a ed.)O''Brien, John A. Your Bridge to Heaven, Winning a Soul for Christ. St. Louis (Misuri): The Queen's Work, 1954.
Cita MLA (9a ed.)O''Brien, John A. Your Bridge to Heaven, Winning a Soul for Christ. The Queen's Work, 1954.
Precaución: Estas citas no son 100% exactas.