Farrell, Orin J. Solved problems : gamma and beta functions, Legendre polynomials, Bessel functions / by Orin J. Farrell and Bertram Ross. - New York : Macmillan, c1963. - 410 p. : illus. ; 21 cm. Includes bibliography and index. Subjects--Topical Terms: Harmonic functions.Gamma functions. Dewey Class. No.: 517.3 / FAS 1963