Canfield, Donald D. T.  <br/><br/>
The measurement of alternating-current energy 

 - New York, London :   McGraw-Hill,   1940. 
 - xi, 210 p. : il. ; 21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CORRIENTE ALTERNA<br/>MEDICION DE ENERGIA ELECT.
<br/><br/><label>Universal Decimal Class. No.: </label>IV-21