Clark, J. W., & Viessman, W. H. (1977). Water supply and Pollution control (3rd.). Harper & Row.
शिकागो स्टाइल उद्धरणClark, John. W., और Warren Hammer Viessman. Water Supply and Pollution Control. 3rd. New York: Harper & Row, 1977.
एमएलए उद्धरणClark, John. W., और Warren Hammer Viessman. Water Supply and Pollution Control. 3rd. Harper & Row, 1977.
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