00554cam a2200205 4500 sa 68013011 DLC 20260227112618.0 691105s1968 ii 00000 eng sa 68013011 //r85 PL480:I-E-11024 HD8039.M72 I57 331.7/62/233 India (Republic). Study Group for Coal. Report. [New Delhi] National Commission on Labour, 1968. iii, 86 p. 22 cm. 0.80 ($0.29) Coal miners India. 84883 84883