Eckenfelder, W. W. (1970). Water quality engineering for practicing engineers. Barnes & Noble.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEckenfelder, W. Wesley. Water Quality Engineering for Practicing Engineers. New York: Barnes & Noble, 1970.
एमएलए (9वां संस्करण) प्रशस्ति पत्रEckenfelder, W. Wesley. Water Quality Engineering for Practicing Engineers. Barnes & Noble, 1970.
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