India. Registrar general and census commissioner & Das, B. (1974). Census of India 1971. Series 4, Bihar: General economic tables. Government of India press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIndia. Registrar general and census commissioner और B.L Das. Census of India 1971. Series 4, Bihar: General Economic Tables. Government of India press, 1974.
एमएलए (9वां संस्करण) प्रशस्ति पत्रIndia. Registrar general and census commissioner और B.L Das. Census of India 1971. Series 4, Bihar: General Economic Tables. Government of India press, 1974.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.