Humphreys, Richard F; Beringer, Robert <br/><br/>
Principles of atomic physics 

 -  Harper & Brothers, New York  1950 
 - 390 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Atomic and Nuclear physics
<br/><br/><label>Dewey Class. No.: </label>PG 539.7  HUM-P