APA (7th ed.) Citation

Hougen, O. A. (1954). Chemical process principles. (2¦ ed.). John Wiley & Sons, Inc..

Chicago Style (17th ed.) Citation

Hougen, Olaf A. Chemical Process Principles. 2¦ ed. New York: John Wiley & Sons, Inc., 1954.

MLA (9th ed.) Citation

Hougen, Olaf A. Chemical Process Principles. 2¦ ed. John Wiley & Sons, Inc., 1954.