India. Registrar General & Census Commissioner & Nanda, A. R. (1988). Census of India 1991. Series - 1 India. Paper 3 of 1991: Provisional population totals: workers and their distribution. Controller of Publication, Civil Lines.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIndia. Registrar General & Census Commissioner और Amulya Ratna Nanda. Census of India 1991. Series - 1 India. Paper 3 of 1991: Provisional Population Totals: Workers and Their Distribution. Controller of Publication, Civil Lines, 1988.
एमएलए (9वां संस्करण) प्रशस्ति पत्रIndia. Registrar General & Census Commissioner और Amulya Ratna Nanda. Census of India 1991. Series - 1 India. Paper 3 of 1991: Provisional Population Totals: Workers and Their Distribution. Controller of Publication, Civil Lines, 1988.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.