Liu, C. (2012). Integrity testing for low-pressure membranes. American Water Works Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLiu, Charles. Integrity Testing for Low-pressure Membranes. Denver, Colo.: American Water Works Association, 2012.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLiu, Charles. Integrity Testing for Low-pressure Membranes. American Water Works Association, 2012.
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