Damua colliery, pench-Kanhan valley coalfied / 
Published by Coal Survey Laboratory 
 - Nagpur :  CSL ,  [n. d.] 
 - 22 p. ;  33 cm. 
 - Technical report/CSL ;  n/6/65 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal preparation<br/>Coal preparation plants--India
<br/><br/><label>Dewey Class. No.: </label>662.622954