Headrick, Daniel R. <br/><br/>
The invisible weapon   telecommunicationa and international politics 1851-1945  [Book] 
Daniel R. Headrick. 
 -  Oxford University Press New York 
<br/><br/> All. 
<br/><br/><label>ISBN: </label>195062736 
<br/><br/><label>Subjects--Topical Terms: </label><br/>History--Political Aspects
<br/><br/><label>Dewey Class. No.: </label>954.91