TY  - BOOK
AU  - Kelley Walter G
AU  -  Peterson Allan C
TI  - Theory of differential equations: Classical and qualitative
SN  - 9781441957825 (pbk)
U1  - B33, P4;Q0   TB 
PY  - 2010///
CY  - New York 
PB  - Springer      
KW  -  Differential equations
KW  - Mathematics
N1  - Bibliography 415-418p.; Index 419-423p
ER  -