Viessman, W., & Hammer, M. J. (1993). Water supply and pollution control (5th ed.). HarperCollins College Publishers.
Chicago (17e ed.) BronvermeldingViessman, Warren, en Mark J. Hammer. Water Supply and Pollution Control. 5th ed. New York: HarperCollins College Publishers, 1993.
MLA (9e ed.) BronvermeldingViessman, Warren, en Mark J. Hammer. Water Supply and Pollution Control. 5th ed. HarperCollins College Publishers, 1993.
Let op: Deze citaties zijn niet altijd 100% accuraat.