TY  - BOOK
AU  - Das, B.C.
AU  -  B.N.Mukherjee
TI  - Differential Calculas 
U1  - 515.33 
PY  - 1991///
CY  - Kolkata
PB  - U.N. Dhur & Sons
KW  - Differential Calculas
KW  - Mathematics
ER  -