Technology in Indian coal washery industry 
/ Development of Scientific & Industrial Research 
 - New Delhi:   Development of Scientific & Industrial Research,   1991 
 - 164p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Management
<br/><br/><label>Subjects--Index Terms: </label>Weeds 
<br/><br/><label>Universal Decimal Class. No.: </label>662.66(540)(047)  / N1