Armstrong, P. (1995). A more perfect legacy: A portrait of Brother Ephrem O'Dwyer, C.S.C., 1888-1978. University of Notre Dame Press.
Dyfyniad Arddull ChicagoArmstrong, Philip. A More Perfect Legacy: A Portrait of Brother Ephrem O'Dwyer, C.S.C., 1888-1978. Notre Dame, Ind.: University of Notre Dame Press, 1995.
Dyfyniad MLAArmstrong, Philip. A More Perfect Legacy: A Portrait of Brother Ephrem O'Dwyer, C.S.C., 1888-1978. University of Notre Dame Press, 1995.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.