Lewis W B <br/><br/>
Electrical counting with specialo referance to counting alpha and beta particles 
by Lewis W B 
 -  1942 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>74925 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics
<br/><br/><label>Dewey Class. No.: </label>C29e, H2;2  CL