Nonlinear Ordinary Differential Equations - D W jORDAN / P Smith

A first course in differential equations with applications, Zill, Dennis G

A First Course in Ordinary Differential Equations by W Leighton (1976 hardcover)

A Course in Ordinary Differential Equations

First Course in Differential Equations with Modeling Applications by Dennis...

A Course in Ordinary Differential Equations Hardcover

First Course in Differential Equations with Modeling Applications by Dennis...

First Course in Differential Equations with Modeling Applications by Dennis Zill