Partial Differential Equations 4th ed, by Fritz John - New Condition Hardback

Numerical Methods For Partial Differential Equations (1977) by William F. Ames

Finite-Difference Methods for Partial Differential Equations by G. Forsythe

Finite-Difference Methods for Partial Differential Equations by I.S. Sokolnikoff

Numerical Methods for Partial Differential Equations, Paperback by Evans, Gar...

FIRST COURSE IN PARTIAL DIFFERENTIAL EQUATIONS WIT By H. F. Weinberger, HC good

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

A G Webster Partial Differential Equations of Mathematical Physics, 1955 Vintage