Relay protection electrician. 
Translated ... by J. Feinberg. Translation editor B. Larin.[By E. Bass and others. With illustrations.] 
 - Moscow  Mir Publishers  c1967. 
 - 435p.  ill.  23cm 
<br/><br/><label>ISBN: </label>000221133 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Relay protection