APA (7th ed.) Zitazioa
Viessman, W., & Hammer, M. J. (1998). Water supply and pollution control (6th ed.). Addison Wesley.
Chicago Style (17th ed.) Zitazioa
Viessman, Warren, eta Mark J. Hammer. Water Supply and Pollution Control. 6th ed. Menlo Park, CA: Addison Wesley, 1998.
MLA (9th ed.) Zitazioa
Viessman, Warren, eta Mark J. Hammer. Water Supply and Pollution Control. 6th ed. Addison Wesley, 1998.
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