Das, R., & Das, R. (1974). Utility services in a metropolis: A study of the housing & water supply in Lucknow nagar Mahapalika. Oxford & IBH Pub.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDas, R.B, और R.B.;Singh Das. Utility Services in a Metropolis: A Study of the Housing & Water Supply in Lucknow Nagar Mahapalika. Oxford & IBH Pub, 1974.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDas, R.B, और R.B.;Singh Das. Utility Services in a Metropolis: A Study of the Housing & Water Supply in Lucknow Nagar Mahapalika. Oxford & IBH Pub, 1974.
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