TY  - BOOK
AU  - Ritger PaulD. 
AU  - Rose N.G.
TI  - Differential equations & applications
SN  - 8121903602
U1  - 515.35 RIT 
PY  - 1968///
CY  - London 
PB  - MC Graw Hill & co .
KW  - Mathematics
ER  -