Das B. C.  <br/><br/>
Differential calculus / 
B.C. Das 
 - 51st ed. 
 - Kolkata:  U.n. Dhur & Song,  c1994 
 - xxxii, 592p.  ill.;  18 cm. 
<br/><br/> Dept. of civil 
<br/><br/><label>ISBN: </label>8185624850 
<br/><br/><label>Subjects--Topical Terms: </label><br/>math  
<br/><br/><label>Dewey Class. No.: </label>515.33  / DAD 51st ed. c2012