Dyfyniad APA

Carley, J. F., & Whittington, L. R. (1993). Whittington's dictionary of plastics (3rd ed.). Technomic Pub. Co.

Dyfyniad Arddull Chicago

Carley, James F., and Lloyd R. Whittington. Whittington's Dictionary of Plastics. 3rd ed. Lancaster, Pa: Technomic Pub. Co, 1993.

Dyfyniad MLA

Carley, James F., and Lloyd R. Whittington. Whittington's Dictionary of Plastics. 3rd ed. Technomic Pub. Co, 1993.

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