Cita APA

Hougen, O. A. n. 1., & Hougen, O. A. n. 1. (1959). Chemical process principles (2. edition.). New York: Willey.

Citación estilo Chicago

Hougen, Olaf Andreas n. 1893, y Olaf Andreas n. 1893 Hougen. Chemical Process Principles. 2. edition. New York: Willey, 1959.

Cita MLA

Hougen, Olaf Andreas n. 1893, y Olaf Andreas n. 1893 Hougen. Chemical Process Principles. 2. edition. New York: Willey, 1959.