Shimray, Chong <br/><br/>
Paryavaran shikshan : Bharat mein rujhaan evam prayog 

 - New Delhi    Sage Pub.  2016 
 - 255 
<br/><br/><label>ISBN: </label>9789352804375 
<br/><br/><label>Dewey Class. No.: </label>333.7  / chog p