NCERT, NCERT. <br/><br/>
Science (Class IX)   

 - New Delhi :   National Council of Education Research and Trainin ,   2010. 
 - 218 Pages;  
<br/><br/><label>ISBN: </label>8174504923 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science and Technology
<br/><br/><label>Dewey Class. No.: </label>600  / NCE