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Dyfyniad Arddull ChicagoRAO, P N. CAD/CAM: PRINCIPLES AND APPLICATIONS, 2ND ED. New Delhi: TMH, 2007.
Dyfyniad MLARAO, P N. CAD/CAM: PRINCIPLES AND APPLICATIONS, 2ND ED. TMH, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.