India, Ministry of labour and rehabilitation, Directorate general of mines safety Dhanbad India <br/><br/>
Statistics of mines in India  Volume II - Non-Coal, 1970 / India 

 - Dhanbad  Government of India  1970 
 - 153p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mines - statistics - India<br/>Production economics