Ball A M Co. <br/><br/>
Radio value  and semi -conductor data. 

 - London  Butterworth         1975 
 - vii ,179 p  cm. 
<br/><br/><label>Standard No.: </label>75689 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>D6520t4d, L5