Patra Pulak Kumar  <br/><br/>
Environmental Studies     
By Pulak Kumar Patra  
 - New Delhi  Studera Press   2018 
 - 390p. 
<br/><br/><label>ISBN: </label>9789385883774 
<br/><br/><label>Subjects--Topical Terms: </label><br/>GENERAL BOOKS
<br/><br/><label>Dewey Class. No.: </label>363.7   / PAE