India.Ministry of Labour <br/><br/>
Statistics of Mines in India 1977 

 - 1977 
 -  1 .
<br/><br/> V-1 : Coal 
 = Statistics of Mines 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics
<br/><br/><label>Subjects--Index Terms: </label>1977 Statistics-India-Mines-1977