TY  - GEN
AU  - Akhtar,Ahsan
AU  - Ahsan,Sabiha
TI  - Differential calculus 
AV  - QA304 .F43
U1  - 515.3 
PY  - 2004///
CY  - New Delhi
PB  - Prentice Hall
KW  - Differential calculus
ER  -