TY  - BOOK
AU  - Zill,Dennis G., x
AU  - x
TI  - A first cuorse in differential equations with modeling applications: x
SN  - 9814040193
U1  - 515.35/Z69f 
PY  - 1997///
CY  - Boston
PB  - Broks /Cole Pub.
KW  - Calculas
N1  - Includes
ER  -