Cita APA (7a ed.)

Hougen, O., Watson, K., & Ragatz, R. (1959). Chemical process principles. P: I (2a ed.). John Wiley & Sons Limited.

Cita Chicago Style (17a ed.)

Hougen, O.A, K.M Watson, y R.A Ragatz. Chemical Process Principles. P: I. 2a ed. New York: John Wiley & Sons Limited, 1959.

Cita MLA (9a ed.)

Hougen, O.A, et al. Chemical Process Principles. P: I. 2a ed. John Wiley & Sons Limited, 1959.