Lythall, R. T. <br/><br/>
The J & P switchgear book :  an outline of modern switchgear practice for the non-specialist user / 
Lythall, R. T. 
 - 7th ed. 
 - London :  Newnes-butterworths,  c 1976. 
 - 804 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>348  348 
<br/><br/><label>ISBN: </label>0 408 00069 4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Switchgear.
<br/><br/><label>Dewey Class. No.: </label>621.317 / L998j