Ryan, H.M. Jones, G.R. <br/><br/>
SF switchgear 
/  H.M.Ryan, G.R.Jones 
 - London  Instituion of electrical engineers  1989 
 - vii, 201 p. 
 - IEE power engineering series;10 .
<br/><br/>   <br/>includes index 
<br/><br/><label>ISBN: </label>255371 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric circuit-breakers
<br/><br/><label>Dewey Class. No.: </label>621.317  / RYA