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Dyfyniad Arddull ChicagoGilbert, Kathleen. Annual Editions the Family Thirty Fourth Edition 08/09. McGraw Hill Companies Inc, 2008.
Dyfyniad MLAGilbert, Kathleen. Annual Editions the Family Thirty Fourth Edition 08/09. McGraw Hill Companies Inc, 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.