Sommerfeld, Arnold,  1868-1951. <br/><br/>
Atomic structure and spectral lines, 
by Arnold Sommerfeld 
 - 3d ed., rev. 
 - London :   Methuen & Co.  1934. 
 - v.  il., diagrs.  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MATTER<br/>MATERIA<br/>ATOMS <br/>ATOMOS<br/>Spectrum analysis.
<br/><br/><label>Universal Decimal Class. No.: </label>539.184