TY  - BOOK
AU  - Lefschetz,Solomon
AU  - Bers,L
AU  - Stoker,J J
TI  - Differential equations
U1  - 514.7 LEF  
PY  - 1957///.
CY  - New York : 
PB  - Interscience Publishers, Inc., 
KW  - Differential equations
KW  - Geometric theory
N1  - Includes index
ER  -