Dark invasion  1915: Germany's secret war and the hunt for the first terrorist cell in America 
Howard Blum 
 - St. Joseph, Mich.  Zenith Data Systems  c1992. 
 - 1 v. (various pagings)  23 cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0133362002 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operating systems (Computers)