TY  - BOOK
AU  - Zill,Dennis G.
TI  - A First course in differential equations: with modeling applications 
SN  - 9780495556220
AV  - QA372 
U1  - 515/.35 
PY  - 2009///
CY  - Belmont, CA
PB  - Brooks/Cole
KW  - Differential equations
KW  - Textbooks
N1  - Includes index
ER  -