Dhruvendra Kumar <br/><br/>
Prithvi aur Paryavaran / 
by Dhruvendra Kumar and Mridula Garg 
 - New Delhi :  Sahitya Bharathy,  1996. 
<br/><br/><br/>In Hindi 
<br/><br/><label>Subjects--Index Terms: </label>Biogeography Geography