Vidyarthi,Prabhunarayan <br/><br/>
Parivesh Ka Dard/ 
Dr. Prabhunarayan Vidyarthi 
 - Delhi:  Vaidehi Prakashan,  2011 
 - 120p 
<br/><br/><label>ISBN: </label>818931820 
<br/><br/><label>Dewey Class. No.: </label>891.431  / VID/P