Armstrong, Lloyd, <br/><br/>
Theory of the hyperfine structure of free atoms 

 - New York,  Wiley-Interscience  [1971] 
 - ix, 209 p.  illus.  23 cm. 
<br/><br/><label>ISBN: </label>0471033359 
<br/><br/><label>Subjects--Index Terms: </label>Hyperfine structure 
<br/><br/><label>Dewey Class. No.: </label>539/.14  / ARM