TY  - BOOK
AU  - Wright, Warren S.
AU  - Wright, Carol D.
TI  - Differential Equations: with boundary-value problems 
SN  - 0534931596
U1  - 515.35 
PY  - 1993///
CY  - U.S.A
PB  - PWS Publishing company
KW  - Mathematics
N1  - Includes Appendix
ER  -