Whitaker, J. W. <br/><br/>
Studies in coal washability :  studies 4, 5 and 6 / 
J. W. Whitaker and G. G. Sarkar 
 - Jealgora :  Fuel Research Institute ,  [n.d] 
 - 16 p.;  24 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal--India<br/>Coal washing
<br/><br/><label>Dewey Class. No.: </label>662.623