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Dyfyniad Arddull ChicagoTrappists. The Cistercian Fathers and Their Monastic Theology. Trappist, Ky.: Gethsemani (Trappist Abbey), 1963.
Dyfyniad MLATrappists. The Cistercian Fathers and Their Monastic Theology. Gethsemani (Trappist Abbey), 1963.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.