Bernheim, Robert. <br/><br/>
Optical pumping:  an introduction. 

 - New York,  W.A. Benjamin,  1965. 
 - xi, 272 p.  illus.  24 cm. 
 - Frontiers in chemistry .
<br/><br/><label>Subjects--Index Terms: </label>Optical pumping. 
<br/><br/><label>Dewey Class. No.: </label>535.2  / BER