TY  - BOOK
AU  - Polking,John
AU  - Boggess,Albert
AU  - Arnold,David
TI  - Differential equations / 
SN  - 0135981379
U1  - 515.35 
PY  - 2001///
CY  - New Jersey
PB  - Prentice-Hall
KW  - Differential equations
KW  - Mathematics
N1  - Include index {6p.}
ER  -