Cita APA

Dubois, J. H., & John, F. W. (1974). Plastics (5th ed.). Van Nostrand Reinhold Company.

Chicago Edition Citation

Dubois, John Harry, i Frederick W. John. Plastics. 5th ed. New York: Van Nostrand Reinhold Company, 1974.

Cita MLA

Dubois, John Harry, i Frederick W. John. Plastics. 5th ed. Van Nostrand Reinhold Company, 1974.