TY  - BOOK
AU  - Swift J . Q
TI  - A course in ordinary differential equations 
SN  -  101584884762
AV  - QA372 . S9 2007 
PY  - 2007///
CY  - London 
PB  - chapman hale / CRC
KW  - Differential equations
KW  - Differential equation linear
ER  -