Dyfyniad APA

Levy, S., & DuBois, H. J. (1977). Plastics Product Design Engineering Handbook. Van Nostrand Reinhold Company.

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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