Condon, E.U. <br/><br/>
The theory of atomic spectra, 
by E.U. Condon and G.H. Shortley. 
 - Cambridge :  Cambridge University Press,  1935. 
 - xv, 441 p. :  ill. ;  27 cm. 
<br/><br/><label>ISBN: </label>0521092094 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spectrum analysis.<br/>Quantum theory.