PRAGYAN WARSHIKI aiv gyan kosh, 1987. 

 - New Delhi  Pragyan Media       1987 
 - Various Pages + 54p  cm. 
<br/><br/><label>Standard No.: </label>41956 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>n1,N87, M7  RR