Racah, G. . Nuclear Spectroscopy, Course 15 / Textual Documents G. Racah. - 1st ed. / - New York : Academic Press , 1960. - vii, 258p. : ill. ; 24cm . Subjects--Index Terms: Physics Nuclear Physics Nuclear Spectroscopy Spectroscopy-Nuclear PG-Physics Dewey Class. No.: 539.81 / It 1 In