APA (7th ed.) Citation

Wells, G. L. (1973). A guide to process engineering with economic objective. Wiley.

Chicago Style (17th ed.) Citation

Wells, G. L. A Guide to Process Engineering with Economic Objective. New York: Wiley, 1973.

MLA (9th ed.) Citation

Wells, G. L. A Guide to Process Engineering with Economic Objective. Wiley, 1973.