India. New Delhi. Ministry of Home Affairs. Office of the Registrar General. (1972). Census of India, 1971: Economic and socio-cultural dimensions of regionalisation: an Indo-U.S.S.R. collaborative study. The Manager of Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIndia. New Delhi. Ministry of Home Affairs. Office of the Registrar General. Census of India, 1971: Economic and Socio-cultural Dimensions of Regionalisation: An Indo-U.S.S.R. Collaborative Study. The Manager of Publications, 1972.
एमएलए (9वां संस्करण) प्रशस्ति पत्रIndia. New Delhi. Ministry of Home Affairs. Office of the Registrar General. Census of India, 1971: Economic and Socio-cultural Dimensions of Regionalisation: An Indo-U.S.S.R. Collaborative Study. The Manager of Publications, 1972.
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