TY  - BOOK
AU  - B.C DAS
TI  - DIFFERENTIAL CALCULUS
U1  - 515.33/DAS/DIF 
PY  - 1983///
CY  - kolkata
PB  - U.N. DHUR & SONS PVT.LTD
KW  - DIFFERENTIAL CALCULUS
KW  - MATHEMATICS
ER  -