Dyfyniad APA

Levy, S., & Dubois, J. H. (1977). Plastics product design engineering handbook. Van Nostrand Reinhold Co.

Dyfyniad Arddull Chicago

Levy, Sidney, and J Harry Dubois. Plastics Product Design Engineering Handbook. .New York: Van Nostrand Reinhold Co, 1977.

Dyfyniad MLA

Levy, Sidney, and J Harry Dubois. Plastics Product Design Engineering Handbook. Van Nostrand Reinhold Co, 1977.

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