"Arya, Srinivas" <br/><br/>
Paryavaran evam shodhan 

 - Delhi  Vikas Paper Backs  2013 
 - 72 p. 
<br/><br/><label>ISBN: </label>81881242910 
<br/><br/><label>Subjects--Topical Terms: </label><br/>"Paryavaran, Paryavaran- shodh"
<br/><br/><label>Dewey Class. No.: </label>H 333.7 ARY