McNamara, W. (1960). Manual for retreat masters. Bruce Pub. Co.
Dyfyniad Arddull ChicagoMcNamara, William. Manual for Retreat Masters. Milwaukee: Bruce Pub. Co, 1960.
Dyfyniad MLAMcNamara, William. Manual for Retreat Masters. Bruce Pub. Co, 1960.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.