Ryan, H. M. <br/><br/>
SF6 switchgear / 
H M Ryan & G R Jones 
 - Stevenage, Herts:   Peregrinus,   1989 
 - vii, 207 p.:   ill.;   24 cm. 
 - IEE power engineering series; 10 .
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0863411231 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric switchgear<br/>Electric controllers