Gaba Om Prakash <br/><br/>
Vivchnatmak samajik vigyan kosh. 

 - New Delhi  National Publishing       2003 
 - 366p.  cm. 
<br/><br/><label>Standard No.: </label>25966 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>Sigma k, P3    RR