Trivedy, R.K.  <br/><br/>
Impact of mining on environment. 

 -  1990 
<br/><br/> U.G.C. 8th plan. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>NO SUBJECT
<br/><br/><label>Dewey Class. No.: </label>622.4  / TRI.SIN