Duffield, B. (1955). Christmas at Lourdes. The Dramatic Publishing Company.
Dyfyniad Arddull ChicagoDuffield, Brainerd. Christmas at Lourdes. Chicago: The Dramatic Publishing Company, 1955.
Dyfyniad MLADuffield, Brainerd. Christmas at Lourdes. The Dramatic Publishing Company, 1955.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.