Herzberg, Gerhard <br/><br/>
Molecular spectra and molecular structure. 

 - New York  D. Van Nostrand Company  1939-1966. 
 - 3 v. 
<br/><br/>v.1. Spectra of diatomic molecules. 2d ed. With the co-operation, in the first edition, of J.W.T. Spinks.--v.2. Infrared and Raman spectra of polyatomic molecules.--v.3. Electronic spectra and electronic structure of polyatomic molecules.