Chakraborty,Sajal Kanti. <br/><br/>
A Class Book Of Mathematics 

 - 3rd rev. 
 - New Delhi:  S.Chand. 
 - 407. 
<br/><br/><label>ISBN: </label>81-219-1638-0 
<br/><br/><label>Dewey Class. No.: </label> / CHA