India. Central Board for the Prevention and Control of Water Pollution. (1979). Industrial survey, Union Territory of Delhi. Central Board for the Prevention and Control of Water Pollution.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIndia. Central Board for the Prevention and Control of Water Pollution. Industrial Survey, Union Territory of Delhi. New Delhi, India: Central Board for the Prevention and Control of Water Pollution, 1979.
एमएलए (8वां संस्करण) प्रशस्ति पत्रIndia. Central Board for the Prevention and Control of Water Pollution. Industrial Survey, Union Territory of Delhi. Central Board for the Prevention and Control of Water Pollution, 1979.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.