TY  - BOOK
AU  - Zill, Dennis G.
TI  - A first course in differential equations: with modelling applications
SN  - 9780495108245
AV  - QA 372 .Z55 2009 
PY  - 2009///
CY  - USA
PB  -  Brooks/ Cole Cengage learning
N1  - Includes index
ER  -