American Water Works Association. (1950). Water quality and treatment (Second Edition.). The American Water Works Association, Inc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAmerican Water Works Association. Water Quality and Treatment. Second Edition. New York: The American Water Works Association, Inc., 1950.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAmerican Water Works Association. Water Quality and Treatment. Second Edition. The American Water Works Association, Inc., 1950.
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