TY  - BOOK
AU  - Ritger, Paul D.
AU  - Rose, Nicholas J.
TI  - DIFFERENTIAL EQUATIONS WITH APPLICATIONS
U1  - 517.38 
PY  - 1968///
CY  - New York
PB  - Mcgraw-Hill
KW  - Differential Equations
N1  - Bibliography : P. 503-504
ER  -