TY  - BOOK
AU  - DAS, B . C
AU  - MUKHOPADHYAY, B . N
TI  - DIFFERENTIAL CALCULUS / 
U1  - X 
PB  - U . N . DHAR
N1  - 16858 / 30TH ED / 1987 / 35/- ; 15888-15889 , 15950  / 28TH ED / 1986 / 32/- ; 16TH ED / 1970 / 448 P / 12/- ; TBL 710 / 1961 / 448 P/ 10/-
ER  -