TY  - BOOK
AU  - Williamson Richard E
TI  - Introduction to differential equations and dynamical systems
SN  - 0-07-070594-1
U1  - 515.35 
PY  - 1997///
CY  - New York
PB  - McGraw-Hill
KW  - Calculus
KW  - Differential equations
KW  - Dynamical systems
ER  -