Rao, Digumarti Bhaskara <br/><br/>
Achievement in mathematics / 
Rao, Digumarti Bhaskara. 
 - New Delhi:  Discovery publishing House,  2012. 
 - 115p.; 22cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>8171412785 
<br/><br/><label>Dewey Class. No.: </label>372.7 RAO