Saxena,A.K <br/><br/>
World Infopaedia 
A.K Saxena 
 - New Delhi:  Pragun publication,  2007. 
 - 848p. 
<br/><br/><label>ISBN: </label>8189645595 
<br/><br/><label>Dewey Class. No.: </label>001  / SAX/W