TY  - BOOK
AU  - Cronin,Jane
TI  - Differential equations: introduction and qualitative theory 
T2  - Pure and applied mathematics
SN  - 0824768191
U1  - 515.35 23
PY  - 1980///
CY  - New York
PB  - M. Dekker
KW  - Differential equations
N1  - Includes bibliography and index
ER  -