TY  - BOOK
AU  - Boyce,William E.
AU  - Diprima,Richard C.
TI  - Elementary differential equetions and boundary value problems
SN  - 0471089559
AV  - QA 371 .B773 1996 
PY  - 1997///
CY  - NY
PB  - John Wiley &sons
KW  - differential equetions
KW  - boundary value problems
ER  -