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Dyfyniad Arddull ChicagoKlimis-Zacas, Dorothy. Annual Editions: Nutrition 08/09. 20th ed. Boston, MA: McGraw-Hill, 2009.
Dyfyniad MLAKlimis-Zacas, Dorothy. Annual Editions: Nutrition 08/09. 20th ed. McGraw-Hill, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.