TY  - BOOK
AU  - B.C. DAS
TI  - DIFFERENTIAL CALCULUS
U1  - 517.3/DAS/D.C, 
PY  - 1949///
CY  - KOLKATA
PB  - U. N. DHUR AND SONS PRIVATE LIMITED
KW  - CALCULUS
KW  - MATHEMATICS
ER  -