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Dyfyniad Arddull ChicagoRadhakrishnan, P., and S Raju Subramanyan, V. CAD/CAM/CIM. Ed.3. New Delhi: New age, 2008.
Dyfyniad MLARadhakrishnan, P., and S Raju Subramanyan, V. CAD/CAM/CIM. Ed.3. New age, 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.