Viessman, W., & Hammer, M. J. (1993). Water supply and pollution control (5th ed.). HarperCollins College Publishers.
Cita Chicago Style (17a ed.)Viessman, Warren, y Mark J. Hammer. Water Supply and Pollution Control. 5th ed. New York: HarperCollins College Publishers, 1993.
Cita MLA (9a ed.)Viessman, Warren, y Mark J. Hammer. Water Supply and Pollution Control. 5th ed. HarperCollins College Publishers, 1993.
Precaución: Estas citas no son 100% exactas.