Morecroft, John Harold,  1881-1934. <br/><br/>
Principles of radio communication / 
by John H. Morecroft, assisted by A. Pinto and W. A. Curry. 
 - 3d ed.--thoroughly rev., 
 - New York,  London,  J. Wiley & sons, inc.;  Chapman & Hall, limited,  1933. 
 - xviii, 1084 p. incl. front., illus., diagrs.  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>RADIO
<br/><br/><label>Universal Decimal Class. No.: </label>621.396