By Reddy, Maruthesha <br/><br/>
Textbook of environmental studies 

 - 1st 
 - New Delhi  Medtech  2016 
 - xvi; 144p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental studies
<br/><br/><label>Dewey Class. No.: </label>333.707  / RED