Introduction to the theory of atomic spectra /
Sobel'man, Igor' Il'ich.
Le Vierge, Thomas Frederick John.
Woodgate, Gordon Kemble.
Oxford Pergamon
1972
Revised translation of 'Vvedenie v teoriiu atomnykh spektrov'. Moscow: Gos. izd-vo fiziko-matematicheskoĭ lit-ry, 1963
Includes index
Atomic spectra.