Luhr Overton <br/><br/>
Physics tells why 

 -  1946 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>68249 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics
<br/><br/><label>Dewey Class. No.: </label>C, H6