Sharma, G.R. Living conditions of colliery workers in Jharia Coal Field - University of Ranchi 1970 - 749p. + C D - 54 Subjects--Topical Terms: COAL MINES AND MINING///JHARIA COAL FIELDJHARIA COAL FIELDCOAL MINERS - BIHARMINERS///COAL MINERS Dewey Class. No.: TS.0269