Kuhn H.G. <br/><br/>
Atomic spectra 

 - London  Longmans UK         1964 
 - 472p.  cm. 
<br/><br/><label>Standard No.: </label>103497 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>C9B2, K4