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Dyfyniad Arddull ChicagoThiroux, Jacques P., and Keith W. Krasemann. Ethics: Theory and Practice. 10th ed. Upper Saddle River, N.J: Prentice Hall, 2009.
Dyfyniad MLAThiroux, Jacques P., and Keith W. Krasemann. Ethics: Theory and Practice. 10th ed. Prentice Hall, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.