X-Rays / 
Maurice De Broglie ; translated by J.R. Clarke. 
 - London :   Methuen & Co,   1925. 
 - xiii, 204 p. :  21 cm.  ill. ; 
<br/><br/> Includes index. 
<br/><br/>392  392 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electriticy & electronics.
<br/><br/><label>Dewey Class. No.: </label>537 / D354x