(1976). Standard methods for the examination of water and: Wastewater (14th ed.). American Health Public Association.
Chicago Style (17th ed.) ZitazioaStandard Methods for the Examination of Water and: Wastewater. 14th ed. Washington, DC: American Health Public Association, 1976.
MLA (9th ed.) ZitazioaStandard Methods for the Examination of Water and: Wastewater. 14th ed. American Health Public Association, 1976.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.