Khan, Wasim Ahmed  <br/><br/>
Paryavaran vigyan vishvkosh. 

 - New Delhi :  Rajat Prakashan,      2011. 
 - 272p. 
 -  Volume 4: Paryavaran evam bhu-vigyan .
<br/><br/><label>ISBN: </label>9788190724654  4500 
<br/><br/><label>Source: </label> 1567, 22/11/2011, Kiran Book Service  Reference Collections 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hindi
<br/><br/><label>Dewey Class. No.: </label>G:55k  Q1.4  RR