00524cam a22001097a 4500 180718b-- xxu||||| |||| 00| 0 eng d Rx5412 B436 Labour in West Bengal by Statistics, Investigation, Research and Publication Branch, Labour Directorate, West Bengal Calcutta Statistics, Investigation, Research and Publication Branch, Labour Directorate -- Library has 1971-1972 West Bengal. Labour Directorate. Statistics, Investigation, Research and Publication Branch 481992 481992 0 0 0 0 IIPA IIPA 2018-08-04 Rx5412 B436 GG13451 2018-08-04 2018-08-04 GG