Mishra, S.P <br/><br/>
Essential environmental studies 

 - 4th ed. 
 - New Delhi  Ane Books  2018 
 - 790p. p. 
<br/><br/><label>ISBN: </label>9789385462030 
<br/><br/><label>Dewey Class. No.: </label>613.7 M68E