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Dyfyniad Arddull ChicagoWright, Erik Olin. American Society: How It Really Works. W.W. Norton & Co, 2011.
Dyfyniad MLAWright, Erik Olin. American Society: How It Really Works. W.W. Norton & Co, 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.