Mackie, A. G. Boundary value problems / A G Mackie. - New York : Hafner Pub. Co., c 1965. - xiii, 252 p. ; ills. ; 24 cm. Includes index. 345 345 Subjects--Topical Terms: Mathematical physics.Functions, Orthogonal.Boundary value problems. Dewey Class. No.: 517.382 / M119b