APA (7th ed.) Zitazioa
Hammer Mark J. (2004). Water and waste water technology (5 th ed.). Prentice Hall India.
Chicago Style (17th ed.) Zitazioa
Hammer Mark J. Water and Waste Water Technology. 5 th ed. New Delhi: Prentice Hall India, 2004.
MLA (9th ed.) Zitazioa
Hammer Mark J. Water and Waste Water Technology. 5 th ed. Prentice Hall India, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.