TY  - BOOK
AU  - Zill, Dennis G.
TI  - Differential equations with boundary-value problems / Dennis G. Zill
SN  - 9780495108368
U1  - RS 515.35 ZIL 
PB  - Belmont, CA : Brooks/Cole, Cengage Learning, c2009.
KW  - Differential equations  Boundary value problems
ER  -