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Dyfyniad Arddull ChicagoHerlihy, Barbara, and Larry Golden. Ethical Standards Casebook. 4th ed. Alexandria: ACA, 1990.
Dyfyniad MLAHerlihy, Barbara, and Larry Golden. Ethical Standards Casebook. 4th ed. ACA, 1990.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.