Dyfyniad APA

Schwartz, S. S., & Goodman, S. H. (1982). Plastics materials and processes. Van Nostrand Reinhold.

Dyfyniad Arddull Chicago

Schwartz, Seymour S., and Sidney H. Goodman. Plastics Materials and Processes. New York: Van Nostrand Reinhold, 1982.

Dyfyniad MLA

Schwartz, Seymour S., and Sidney H. Goodman. Plastics Materials and Processes. Van Nostrand Reinhold, 1982.

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