Dyfyniad APA

Crawford, R. J. (1998). Plastics engineering (3rd ed.). Boston: Butterworth-Heinemann.

Dyfyniad Arddull Chicago

Crawford, R. J. Plastics Engineering. 3rd ed. Boston: Butterworth-Heinemann, 1998.

Dyfyniad MLA

Crawford, R. J. Plastics Engineering. 3rd ed. Boston: Butterworth-Heinemann, 1998.

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