TY  - BOOK
AU  - Zill,G Dennis
ED  - Cullle, R Michael
TI  - Differential Equations With Boundary -Value Problems
SN  - 0534931588
U1  - 515.35 
PY  - 1993///
CY  - Boston
PB  - PWS Publishing Company
KW  - Differential Equations With Boundary -Value Problems
ER  -