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Dyfyniad Arddull ChicagoGale, Bruce. The Case of the Multi-purpose Group. Manila: Solidaridad Publishing House, 1987.
Dyfyniad MLAGale, Bruce. The Case of the Multi-purpose Group. Solidaridad Publishing House, 1987.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.