Humphreys, Richard F. <br/><br/>
First principles of atomic physics, 
by Richard F. Humphreys and Robert Beringer. 
 - New York:   Harper,  1950 
 - ix, 390 p.:  ill.;  24 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics.