Ray, Brati Sankar <br/><br/>
An introduction to differential calculus 
Brati Sankar Ray 
 - Calcutta  The author  1950 
 - 245p. 
<br/><br/><label>ISBN: </label> Rs.6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential calculus<br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>515.33  / RAY