O'Brien, J. A. (1945). How to Find Christ's Church: Charts Show the Way. New York.
Dyfyniad Arddull ChicagoO'Brien, John A. How to Find Christ's Church: Charts Show the Way. New York, 1945.
Dyfyniad MLAO'Brien, John A. How to Find Christ's Church: Charts Show the Way. New York, 1945.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.