Power system protection 
edited by The Electricity Council. 
 - London  Macdonald & Co.  c1969. 
 - xii, 256p.  ill.  24cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>356026973 
<br/><br/><label>Subjects--Topical Terms: </label><br/>System protection.