TY  - BOOK
AU  - Boyce, William E
AU  - DiPrima, Richard C
TI  - Elementary differential equations and boundary value problems
U1  - R  515.35  BOY-E7;1 
PY  - 1977///
CY  - John Wiley & Sons Inc., New York
KW  - Differential equations-- Analysis-- Mathematics
ER  -