Group theory and its application to the quantum mechanics of atomic spectra. Translated from the German by J.J. Griffin. Wigner, Eugene Paul, 1902- Group theory. Quantum theory. QA171 .W653 1959 512.86 WIG New York : Academic Press, 1959. 1959. 1959 Text xi, 372 p. : eng engger Pure and applied physics, v. 5 Pure and applied physics ; v. 5.