Ratcliffe, J. A. <br/><br/>
(The) Physical principles of wireless / 
by J. A. Ratcliffe ; with a foreword by E. V. Appleton. 
 - 9th rev. ed. 
 - London :  Methuen,  1952 
 - viii, 109p. ;  17x11cm. 
 - (Methuen's monographs on physical subjecrs /  edited by B. L. Worsnop) .
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ELECTRONICS ENGINEERING
<br/><br/><label>Dewey Class. No.: </label>621.3813  / RAT-PHY