National Council of Educational Research and Training <br/><br/>
Science text book for class  IX 

 - New Delhi  National Council for Educational Research and Training  2015 
 - 218 
<br/><br/><label>ISBN: </label>81-7450-492-3 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>500