Herzberg, Gerhard. Molecular Spectra and Molecular Structure:III. Electronic Spectra and Electronic Structure of Polyatomic Molecules / - 1st ed / - New York, N.Y.-10001 : Van Nostrand Beinhold Company. - xviii,745p ; ISBN: 0 442 03387 7 Subjects--Topical Terms: Physics Dewey Class. No.: C9B3,5:3 / K6H