Partial Differential Equations Of Mathematical Physics by A.G. Webster PB 1955

On the Partial Difference Equations, of Mathematical Physics (Classic Reprint)

Partial Differential Equations of Mathematical Physics - PB 1966 2nd, corrected

Partial Differential Equations (1965) ~ Hans Weinberger ~ Hardcover ~Dust Jacket

VTG Partial Differential Equations In Physics by Arnold Sommerfeld - 1953 HC

On the Partial Difference Equations, of Mathematical Physics (Classic Reprint)

Partial Differential Equations in Physics - Arnold Sommerfeld - 1949 Hardcover

Laplace transforms and their applications to differential equations by N. W. McL