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Dyfyniad Arddull ChicagoKrottmaier, J. Optimizing Engineering Designs. Singapore: McGraw-Hill, 1993.
Dyfyniad MLAKrottmaier, J. Optimizing Engineering Designs. Singapore: McGraw-Hill, 1993.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.