Differential Equations by Shepley L. Ross (1965) 2nd Printing Hardcover

Int Series in Pure and Applied Math… Partial Differential Equations… 2nd Ed

Elliptic Partial Differential Equations Quasiconformal Mappings Plane HCDJ 2009

Numerical Solution of Partial Differential Equations by J. Bramble 1966 HC / DJ

Applied Differential Equations Murray R. Spiegel Math Textbook 1961

Introduction to ordinary differential equations Sheply Ross 1966 1st Edition VG

Partial Differential Equations Of Mathematical Physics By A. G. Webster

SMP Further Mathematics Series Differential Equations and Circuits