Singh,Jagdish <br/><br/>
Paryavaran:  Ek samajshastriya Adhayan, 
/ by Jagdish Singh 
 - New Delhi:  Kamal Bisht,  2009. 
 - 309p. 
<br/><br/><label>ISBN: </label>9788189531102 
<br/><br/><label>Dewey Class. No.: </label>363.7  / SIN/P