Chance B <br/><br/>
Electronic time measurements 

 -  1949 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>33349 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>D65:485:75, H9;1