QASIM, S. R. (1985). Wastewater Treatment Plants Planning Design And Operation Syed R. Qasim. CBS College Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रQASIM, Syed R. Wastewater Treatment Plants Planning Design And Operation Syed R. Qasim. CBS College Publishing, 1985.
एमएलए (8वां संस्करण) प्रशस्ति पत्रQASIM, Syed R. Wastewater Treatment Plants Planning Design And Operation Syed R. Qasim. CBS College Publishing, 1985.
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