Lieberstein, H. Melvin. Theory of partial differential equations/ H. Melvin Lieberstein. - New York: Academic Press, 1972. - xiv, 283 p.: illus., 24 cm. - Mathematics in science and engineering, v. 93. . Bibliography: p. 264-266. ISBN: 0124495508 LCCN: 72084278 Subjects--Topical Terms: Differential equations, Partial. Dewey Class. No.: 515.35 / L716t