Chapra, S. C. (1997). Surface Water-Quality Modeling. Singapore: McGraw-Hill.
शिकागो स्टाइल उद्धरणChapra, Steven C. Surface Water-Quality Modeling. Singapore: McGraw-Hill, 1997.
एमएलए उद्धरणChapra, Steven C. Surface Water-Quality Modeling. Singapore: McGraw-Hill, 1997.
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