WANG,Y.J <br/><br/>
PROCEEDINGS OF THE 5TH U.S.MINE VENTILATION SYMPOSIUM 

 - Colorado  SOCIETY FOR MINING  1991 
 - 29X22 
<br/><br/><label>ISBN: </label>0873350995 
<br/><br/><label>Dewey Class. No.: </label>622.4206 W246