Trim, Donald W. Applied partial differential equations / Donald W. Trim. - Boston : PWS-Kent , 1990. - xv, 485, 36 p. : ill. ; 25 cm. - The Prindle, Weber & Schmidt series in mathematics. . Includes index. Includes bibliographical references. ISBN: 0534921345 (hbk.)) Subjects--Topical Terms: Differential equations, Partial.