Introduction to Partial Differential Equations with Applications (Dover B - GOOD

A First Course in Partial Differential Equations: with Complex Variables - GOOD

Partial Differential Equations for Scientists and Engineers (Dover B - VERY GOOD

Element Differential Equations and Boundary Value Problems Hardco

Differential Equations (Quick Study: Academic) - Cards - VERY GOOD

Elementary Differential Equations with Boundary Hardcover

Partial Differential Equations for Scientists and Engineers (Dover Books on ...

Complex Variables (Dover Books on Mathematics) - Paperback - ACCEPTABLE