TY  - BOOK
AU  - Akhtar, Ahsan
AU  - Ahsan, Sabiha 
TI  - Textbook of differential calculus
SN  - 9788120324428
U1  - 515.33 Ak47d 
PY  - 2004///
CY  - New Delhi
PB  - Prentice-Hall of India Private Limited
KW  - Differential calculus
ER  -