The Bureau of Applied Economics & Statistics. (1969). Monthly Statistical Digest: West Bengal. The Bureau of Applied Economics & Statistics.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रThe Bureau of Applied Economics & Statistics. Monthly Statistical Digest: West Bengal. The Bureau of Applied Economics & Statistics, 1969.
एमएलए (9वां संस्करण) प्रशस्ति पत्रThe Bureau of Applied Economics & Statistics. Monthly Statistical Digest: West Bengal. The Bureau of Applied Economics & Statistics, 1969.
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