WASTEWATER ENGINEERING & METCALF [et.al]. (2003). Wastewater engineering: Treatment and reuse.-- ed.4. McGraw-Hill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWASTEWATER ENGINEERING और METCALF [et.al]. Wastewater Engineering: Treatment and Reuse.-- Ed.4. Boston: McGraw-Hill, 2003.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWASTEWATER ENGINEERING और METCALF [et.al]. Wastewater Engineering: Treatment and Reuse.-- Ed.4. McGraw-Hill, 2003.
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