TY  - BOOK
AU  - Zill, Dennis G.
TI  - A First Course In Differential Equations With Modeling Applications 
SN  - 0-534-37999-0 
PY  - 2001///
CY  - USA
PB  - Brooks/Cole 
KW  - 1.  Differential equations.  2.  Ecuaciones diferenciales
ER  -