World Health Organization. (1999). Guidelines for drinking-water quality, volume 3: Surveillance and control of community supplies (2nd ed.). World Health Organization.
Chicago-viite (17. p.)World Health Organization. Guidelines for Drinking-water Quality, Volume 3: Surveillance and Control of Community Supplies. 2nd ed. Geneva: World Health Organization, 1999.
MLA-viite (8. p.)World Health Organization. Guidelines for Drinking-water Quality, Volume 3: Surveillance and Control of Community Supplies. 2nd ed. World Health Organization, 1999.
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