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Dyfyniad Arddull ChicagoThiel, David V. Research Methods for Engineers. Cambridge, United Kingdom: Cambridge University Press, 2014.
Dyfyniad MLAThiel, David V. Research Methods for Engineers. Cambridge University Press, 2014.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.