TY  - BOOK
AU  - Simmons,George F.
TI  - Differential equations with applications and historical notes
SN  - 0070530718
U1  - 515.35 SI47D2 
PY  - 2004///
CY  - New Delhi
PB  - Tata Mcgraw-Hill
KW  - First order equations
KW  - Linear equations
KW  - Nonlinear equations
ER  -