Johnson J Richard <br/><br/>
Electric citcuits 

 -  1970 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>70997 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Direct current
<br/><br/><label>Dewey Class. No.: </label>D663, L0;1