Day, R. W. (1999). Forensic geotechnical and foundation engineering. New York; London: McGraw-Hill.
शिकागो स्टाइल उद्धरणDay, Robert W. Forensic Geotechnical and Foundation Engineering. New York; London: McGraw-Hill, 1999.
एमएलए उद्धरणDay, Robert W. Forensic Geotechnical and Foundation Engineering. New York; London: McGraw-Hill, 1999.
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