Hammer, M. J. (1986). Water and waste water technology / 2nd ed (2nd ed.). Wiley.
Dyfyniad Arddull ChicagoHammer, Mark J. Water and Waste Water Technology / 2nd Ed. 2nd ed. New York: Wiley, 1986.
Dyfyniad MLAHammer, Mark J. Water and Waste Water Technology / 2nd Ed. 2nd ed. Wiley, 1986.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.