TY  - BOOK
AU  - O'Malley Robert O
TI  - Thinking About Ordinary Differential Equations
SN  - 9780521557429
U1  - 515.35 OMA 
PY  - 1997///
CY  - New York
PB  - Cambridge University Press
KW  -  O'Malley Robert E
KW  - Differential Equations
ER  -