Ghosh A B <br/><br/>
Economic of coal washing in India 

 -  1966 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal Industry
<br/><br/><label>Dewey Class. No.: </label>X9(F551).2.N6, K6