WASTEWATER TREATMENT. (2004). Wastewater treatment technologies and environment vol.1. Daya Publishing House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWASTEWATER TREATMENT. Wastewater Treatment Technologies and Environment Vol.1. Delhi: Daya Publishing House, 2004.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWASTEWATER TREATMENT. Wastewater Treatment Technologies and Environment Vol.1. Daya Publishing House, 2004.
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