Cita APA (7th ed.)

Hougen, O. A., & Watson, K. M. (1947). Chemical process principles. John Wiley.

Cita Chicago (17th ed.)

Hougen, O. A., i Kenneth Merle Watson. Chemical Process Principles. Nueva York: John Wiley, 1947.

Cita MLA (9th ed.)

Hougen, O. A., i Kenneth Merle Watson. Chemical Process Principles. John Wiley, 1947.