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Dyfyniad Arddull ChicagoAtkins, P. W. Physical Chemistry. 3rd ed. New York: Elbs, 1987.
Dyfyniad MLAAtkins, P. W. Physical Chemistry. 3rd ed. Elbs, 1987.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.