Rao, Digumarti Bhaskara <br/><br/>
Science and technology education for all / 
Rao, Digumarti Bhaskara. 
 - New Delhi:  Discovery Publishing House,  2011. 
 - 464p.; 22cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9788171415724 
<br/><br/><label>Dewey Class. No.: </label>372.35 SCI