Smalley, Mathew F. <br/><br/>
Practical electric metering /  
by M. F. Smalley, A. N. Prentice, R. V. Kelch [and others]... 
 - New York,  London,  J. Wiley & sons, inc.;  Chapman & Hall, limited,  1940. 
 - vii, 228 p. illus., diagrs.  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MEDICIONES ELECTRICAS
<br/><br/><label>Universal Decimal Class. No.: </label>621.315