Dyfyniad APA

Cleminshaw, D. (1989). Designs plastics. Rockport Publishers.

Dyfyniad Arddull Chicago

Cleminshaw, Douglas. Designs Plastics. Massachusetts: Rockport Publishers, 1989.

Dyfyniad MLA

Cleminshaw, Douglas. Designs Plastics. Rockport Publishers, 1989.

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