Dyfyniad APA
Hammer Mark J. (2004). Water and waste water technology (5 th ed.). Prentice Hall India.
Dyfyniad Arddull Chicago
Hammer Mark J. Water and Waste Water Technology. 5 th ed. New Delhi: Prentice Hall India, 2004.
Dyfyniad MLA
Hammer Mark J. Water and Waste Water Technology. 5 th ed. Prentice Hall India, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.