APA (7e ed.) Bronvermelding

RAO, V. (2012). TEXTBOOK OF ENVIRONMENTAL ENGINEERING. PHI.

Chicago (17e ed.) Bronvermelding

RAO, V. TEXTBOOK OF ENVIRONMENTAL ENGINEERING. N DELHI: PHI, 2012.

MLA (9e ed.) Bronvermelding

RAO, V. TEXTBOOK OF ENVIRONMENTAL ENGINEERING. PHI, 2012.