Pratt, William Thomas. <br/><br/>
Worked examples in electrotechnology 
[by] W. T. Pratt. 
 - 7th ed. 
 - London,  Hutchinson,  1968. 
 - xxiv, 325 p.  illus.  22 cm. 
<br/><br/><label>ISBN: </label>0090480325 
<br/><br/><label>LCCN: </label>68082021 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrical engineering
<br/><br/><label>Dewey Class. No.: </label>621.3/076