American Public Health Association, American Water Works Association, Water Environment Federation, Greenberg, A. E., Clesceri, L. S., & Eaton, A. D. (1992). Standard methods for the examination of water and wastewater (18th ed.). American Public Health Association.
शिकागो स्टाइल उद्धरणAmerican Public Health Association, American Water Works Association, Water Environment Federation, Arnold E. Greenberg, Lenore S. Clesceri, और Andrew D. Eaton. Standard Methods for the Examination of Water and Wastewater. 18th ed. Washington, DC: American Public Health Association, 1992.
एमएलए उद्धरणAmerican Public Health Association, et al. Standard Methods for the Examination of Water and Wastewater. 18th ed. American Public Health Association, 1992.
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