Vyas Shyam Manohar <br/><br/>
Encyclopedia of environment. 

 - Jaipur  University Book House       1994 
 - 35p.  cm. 
<br/><br/><label>Standard No.: </label>38835 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>G:55k1,N94, N4     RR