(1981). International journal of polymeric materials. Gordon and Breach science publishers.
Dyfyniad Arddull ChicagoInternational Journal of Polymeric Materials. NewYork: Gordon and Breach science publishers, 1981.
Dyfyniad MLAInternational Journal of Polymeric Materials. Gordon and Breach science publishers, 1981.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.