00611cam a2200217 4500 sa 68013565 DLC 20260227112622.0 691211s1967 ii b 00000 eng sa 68013565 //r852 PL480:I-E-11022 HD8039.M62I425 331.7/62/233 India. Labour Bureau. Report on survey of labour conditions in coal mining industry in India. [New Delhi, 1967] vi, 119 p. 25 cm. 7.75 ($2.79) Bibliographical footnotes. Coal miners India. 85179 85179