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Dyfyniad Arddull ChicagoFrost, Mervyn. Global Ethics: Narchy, Freedom and International Relations. London: New York.
Dyfyniad MLAFrost, Mervyn. Global Ethics: Narchy, Freedom and International Relations. New York.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.