Trishna Knowledge Systems <br/><br/>
Pearson Iit Foundation Series - Maths - Class 7  
Trishna Knowledge Systems 
 -   Pearson Education India 
 - 360p. 
<br/><br/><label>ISBN: </label>9789353430979 
<br/><br/><label>Dewey Class. No.: </label>510  / TRI