Proceesings of the royal institution of great britain 

 - London  Applied Science          1949 
 - 49p.  cm. 
<br/><br/><label>Standard No.: </label>59400 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Dewey Class. No.: </label>Am3,N76, L7