Electrical engineer's reference book 
edited by M.A. Laughton and M.G. Say with specialist contributors 
 - 14th ed. 
 - London  Butterworths  1985 
 - various pagings : ill. ; 25 cm. 
<br/><br/><label>ISBN: </label>0408004320 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric engineering--Handbooks, manuals, etc.