Jansky, Cyril M. <br/><br/>
Electrical meters 

 - 2nd ed. revised and enlarged 
 - New York :   McGraw-Hill,   1917. 
 - xiv, 416 p. : il. ; 23,5 cm. 
 - Engineering edu .
<br/><br/> Preparedin the extension division of the University of Wisconsin. 
<br/><br/><label>Universal Decimal Class. No.: </label>IV-37 IV-47