TY  - BOOK
AU  - Coddington, Earl A.
AU  - Levinson, Norman
TI  - Theory of ordinary differential equations
SN  - 0-07-099256-8
U1  - 512.82 
PY  - 1990///
CY  - New Delhi
PB  - Tata McGraw-Hill
KW  - DIFFERENTIAL EQUATIONS
ER  -