American Public Health Association. (1995). Standard methods for the examination of water and wastewater (19a. ed.). American Public Health Association.
Chicago Style (17th ed.) ZitazioaAmerican Public Health Association. Standard Methods for the Examination of Water and Wastewater. 19a. ed. Washington, D.C: American Public Health Association, 1995.
MLA (9th ed.) ZitazioaAmerican Public Health Association. Standard Methods for the Examination of Water and Wastewater. 19a. ed. American Public Health Association, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.