Sommerfeld, Arnold, 1868-1951. Atomic structure and spectral lines, by Arnold Sommerfeld ... translated from the 5th German edition by Henry L. Brose ... - 3d ed., rev. - London, Methuen & Co. [1934]- - v. illus., diagrs. 23 cm. LCCN: 34038368 Subjects--Topical Terms: Matter--Constitution.Atoms.Spectrum analysis. LC Class. No.: QC173 / .S5 1934 Dewey Class. No.: 541.2