TY  - BOOK
AU  - B.C DAS
TI  - DIFFERENTIAL CALCULUS
U1  - 517.3/DAS/D.C 
PY  - 1968///
CY  - kolkata
PB  - U.N. DHUR & SONS PVT.LTD
KW  - CALCULUS
KW  - MATHEMATICS
ER  -