Druzhinin, G.V. <br/><br/>
Time relays 

 - New York  ; Pergamon Press  , 1961 
 - viii,80p. 
<br/><br/><label>ISBN: </label> 24.30 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrical Engineering<br/>Engineering
<br/><br/><label>Dewey Class. No.: </label>621.3  / DRU