(1976). Industrial Wastewater Management Handbook Editors: In Chief Hardan Sing Azad. McGraw-Hill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIndustrial Wastewater Management Handbook Editors: In Chief Hardan Sing Azad. McGraw-Hill, 1976.
एमएलए (8वां संस्करण) प्रशस्ति पत्रIndustrial Wastewater Management Handbook Editors: In Chief Hardan Sing Azad. McGraw-Hill, 1976.
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