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Dyfyniad Arddull ChicagoUicker, John J., and Gordon R. Shigley Pennock. Theory of Machines and Mechanisms. 3rd ed. Oxford: Oxford University Press, 2004.
Dyfyniad MLAUicker, John J., and Gordon R. Shigley Pennock. Theory of Machines and Mechanisms. 3rd ed. Oxford University Press, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.