Jeffreys, Harold, Methods of mathematical physics / by Sir Harold Jeffreys and Bertha Swirles (Lady Jeffreys). - 3rd ed. - Cambridge, [U.K.] ; New York : Cambridge University Press, 1999. - viii, 718 p. : ill. - Cambridge mathematical library . Previously published: 1972. ISBN: 0521664020 (pbk.) Subjects--Topical Terms: Mathematics.Mathematical physics. LC Class. No.: QA401 / .J4 1999