Davis, M. L., & Cornwell, D. A. (2013). Introduction to environmental engineering (Fifth edition.). McGraw-Hill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDavis, Mackenzie L., और David A. Cornwell. Introduction to Environmental Engineering. Fifth edition. New York: McGraw-Hill, 2013.
एमएलए (8वां संस्करण) प्रशस्ति पत्रDavis, Mackenzie L., और David A. Cornwell. Introduction to Environmental Engineering. Fifth edition. McGraw-Hill, 2013.
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