Narayan,  Shanti. <br/><br/>
Number  Systerm 

 - 1st /   1983. 
 - Delhi:  S.  Chand  &  Company  Ltd.,  1983. 
 - 128p. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Mathematics, Number  Theory. 
<br/><br/><label>Dewey Class. No.: </label>512.7