Jeffery, Keith <br/><br/>
MI6 : the history of the Secret Intelligence Service, 1909-1949 
Keith Jeffery 
 - London:  Bloomsbury Publishing;  c2010. 
 - 810 pages: 
<br/><br/><label>ISBN: </label>9781408813157 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Great Britain, Intelligence service--General
<br/><br/><label>Dewey Class. No.: </label>327.1241 JEF