Portland Cement Association, C. (1964). Handbook of concrete culvert pipe hydraulics. Chicago: Portland Cement Association.
शिकागो स्टाइल उद्धरणPortland Cement Association, Chicago. Handbook of Concrete Culvert Pipe Hydraulics. Chicago: Portland Cement Association, 1964.
एमएलए उद्धरणPortland Cement Association, Chicago. Handbook of Concrete Culvert Pipe Hydraulics. Chicago: Portland Cement Association, 1964.
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