Lapp , Ralph E. <br/><br/>
Roads to discovery :   illustrated / 
by Ralph E. Lapp 
 - New York :  New American Library ,  1960 
 - 158p.,  illus.,pict.,  18cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ATOMIC PHYSICS
<br/><br/><label>Dewey Class. No.: </label>539.7  / LAP/R