Parr G <br/><br/>
Low voltage cathode ray tube and it's applications 

 -  1937 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>59262 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radiation
<br/><br/><label>Dewey Class. No.: </label>C52e:9, G7              CS