West Bengal (India). Bureau of Applied Economics and Statistics. (1971). Report on earners' survey, 1962 for Calcutta industrial area (excluding Calcutta).
Chicago-viite (17. p.)West Bengal (India). Bureau of Applied Economics and Statistics. Report on Earners' Survey, 1962 for Calcutta Industrial Area (excluding Calcutta). [Calcutta], 1971.
MLA-viite (8. p.)West Bengal (India). Bureau of Applied Economics and Statistics. Report on Earners' Survey, 1962 for Calcutta Industrial Area (excluding Calcutta). 1971.
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