Jacob L <br/><br/>
Introduction to electron optics 

 -  1951 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>59570 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrons
<br/><br/><label>Dewey Class. No.: </label>C296, J12              CS