Dyfyniad APA
Whittington, L. R. (1978). Whittington's dictionary of plastics (2nd ed.). Technomic publicaion.
Dyfyniad Arddull Chicago
Whittington, Lloyd R. Whittington's Dictionary of Plastics. 2nd ed. Westport: Technomic publicaion, 1978.
Dyfyniad MLA
Whittington, Lloyd R. Whittington's Dictionary of Plastics. 2nd ed. Technomic publicaion, 1978.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.