Dyfyniad APA

(1982). Encyclopedia of plastics, polymers and resins.V.3. Chemical Publishing Co.

Dyfyniad Arddull Chicago

Encyclopedia of Plastics, Polymers and Resins.V.3. New York: Chemical Publishing Co, 1982.

Dyfyniad MLA

Encyclopedia of Plastics, Polymers and Resins.V.3. Chemical Publishing Co, 1982.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.