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Dyfyniad Arddull ChicagoFoster, Stewart. Mary's Servant of Peace: St Philip Benizi, OSM. London, 1986.
Dyfyniad MLAFoster, Stewart. Mary's Servant of Peace: St Philip Benizi, OSM. London, 1986.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.