TY  - BOOK
AU  - Birkhoff,Garrett
AU  - Rota,Gian-Carlo
TI  - Ordinary differential equations
SN  - 9812530029
U1  - 515.352 B536O4 
PY  - 1989///
CY  - Singapur
PB  - John Wiley and Sons
KW  - Differential equations
KW  - Mathematics
ER  -