TY  - BOOK
AU  - Akhtar,Ahsan
AU  - Ahsan,Sabiha
TI  - TEXTBOOK OF DIFFERENTIAL CALCULUS
SN  - 9788120338531
U1  - 515.35 
PY  - 2009///
CY  - NEW DELHI
PB  - PRENTICE -HALL OF INDIA
ER  -