APA
Hougen O.A, Ragatz R.A & Watson K.M. (1995). Chemical Process Principles Part 1. New Delhi: CBS.
Chicago
Hougen O.A, Ragatz R.A and Watson K.M. 1995. Chemical Process Principles Part 1. New Delhi: CBS.
Harvard
Hougen O.A, Ragatz R.A and Watson K.M. (1995). Chemical Process Principles Part 1. New Delhi: CBS.
MLA
Hougen O.A, Ragatz R.A and Watson K.M. Chemical Process Principles Part 1. New Delhi: CBS. 1995.