Agarwal, Preeti <br/><br/>
National science olympiad :  exploring the world of science : class 9 / 
 Science olympiad 
Preeti Agarwal 
 - New Delhi :  V & S publishers,  2018 
 - 360 p. ;  24 cm. 
 - The Gen X Series. .
<br/><br/> 1 CD-ROM includes. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9789357940481 (pbk.)  Rs.295.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching<br/>Science--Problems, exercises, etc.
<br/><br/><label>Dewey Class. No.: </label>507