West Bengal. Labour Directorate, S. B. (1971). Handbook of Labour Statistics of West Bengal: 1970. The author.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWest Bengal. Labour Directorate, Statistics Branch. Handbook of Labour Statistics of West Bengal: 1970. The author, 1971.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWest Bengal. Labour Directorate, Statistics Branch. Handbook of Labour Statistics of West Bengal: 1970. The author, 1971.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.