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Dyfyniad Arddull ChicagoThomas, Sabu...[et.al]. Natural Rubber Materials. Cambridge: RSC publishing, 2014.
Dyfyniad MLAThomas, Sabu...[et.al]. Natural Rubber Materials. RSC publishing, 2014.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.