APA
Coulson J.M, . (2006). Chemical Engg. : Butterworth New Delhi.
Chicago
Coulson J.M, . 2006. Chemical Engg. : Butterworth New Delhi.
Harvard
Coulson J.M, . (2006). Chemical Engg. : Butterworth New Delhi.
MLA
Coulson J.M, . Chemical Engg. : Butterworth New Delhi. 2006.