APA Citatie

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

Chicago Style citaat

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

MLA citatie

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