Annual report on the activities of the coal mines labour welfare organisation Dhanbad 

 - Dhanbad  L.R.L.E India           1977 
 - 25p,21p,17p,18p  cm. 
 -  1970-71 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Minings
<br/><br/><label>Dewey Class. No.: </label>X9(HZ551):958.2r, L7/GD