Mathematics text book for class IX 
NATIONAL COUNCIL OF EDUCATION RESEARCH AND TRAINING 
 - First edition 
 - NewDelhi  [publisher not identified]  2015 
 - iii,350 
<br/><br/><label>ISBN: </label>8174504893 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>510