APA (7e ed.) Bronvermelding

GUPTA, R. (2012). ENERGY & ENVIRONMENTAL MANAGEMENT IN METALLURGICAL INDUSTRIES. PHI.

Chicago (17e ed.) Bronvermelding

GUPTA, R.C. ENERGY & ENVIRONMENTAL MANAGEMENT IN METALLURGICAL INDUSTRIES. N DELHI: PHI, 2012.

MLA (9e ed.) Bronvermelding

GUPTA, R.C. ENERGY & ENVIRONMENTAL MANAGEMENT IN METALLURGICAL INDUSTRIES. PHI, 2012.

Let op: Deze citaties zijn niet altijd 100% accuraat.