Keegan, John, <br/><br/>
Intelligence in war: knowledge of the enemy from Napoleon to al-Qaeda / 
John Keegan. 
 - London :  Hutchinson,  2003. 
 - xix, 443 p. :  ill., maps ;  24 cm. 
<br/><br/><label>ISBN: </label>9780712666503 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Military intelligence--History--19th century.<br/>Military intelligence--History--20th century.<br/>Military history, Modern--20th century.<br/>Military history, Modern--19th century.
<br/><br/><label>Dewey Class. No.: </label>355.3432 KEE