Parker, H. W. (1975). Wastewater Systems Engineering Homer Parker W. Prentice-Hall.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रParker, Homer W. Wastewater Systems Engineering Homer Parker W. Prentice-Hall, 1975.
एमएलए (8वां संस्करण) प्रशस्ति पत्रParker, Homer W. Wastewater Systems Engineering Homer Parker W. Prentice-Hall, 1975.
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