Gregory I, P. (1908). A Homily of St. Gregory the Great on the Pastoral Office. New York.
Dyfyniad Arddull ChicagoGregory I, Pope. A Homily of St. Gregory the Great on the Pastoral Office. New York, 1908.
Dyfyniad MLAGregory I, Pope. A Homily of St. Gregory the Great on the Pastoral Office. New York, 1908.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.