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

 - New Delhi :   NCERT ,   2007. 
 - 218 Pages;  
<br/><br/><label>ISBN: </label>8174504923 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural sciences & mathematics
<br/><br/><label>Dewey Class. No.: </label>500  / NCE