TY  - BOOK
AU  - Boyce William C
AU  - Diprima R C.
TI  - Elementry differential equations and boundary value problems
SN  - 9788126521555 
U1  - 511.33 
PY  - 1994///
CY  - U K
PB  - John Wiley & Sons
KW  - General principles of mathematics
ER  -