Partial Differential Equations in Physics – Arnold Sommerfeld (1949) Academic...

A First Course in Partial Differential Equations (1965) by Hans F Weinberger VGC

Optimal Control of Partial Differential Equations II: Theory and Applications:

Partial Differential Equations Lawrence C Evans AMS Graduate Studies Math Vol 19

Elementary Applied Partial Differential Equations With Fourier Series and Bo...

schaum's outline series- Partial Differential Equations McGraw-Hill

Optimal Control of Partial Differential Equations - 9783034897310

Applied Partial Differential Equations by Richard Haberman (2003, Hardcover)