Andrew, Christopher M. <br/><br/>
The defence of the realm :  the authorized history of MI5 / 
Christopher Andrew 
 - London :  Penguin Books,  2010 
 - xiii, 1044 p. :  ill., col. map, ports. ;  20 cm. 
<br/><br/> Ill. and map on lining papers 
<br/><br/>Includes bibliographical references and index 
<br/><br/> This book reveals the precise role of the Security Service in 20th-century British history, from its foundation by Captain Kell of the British Army in October 1909, through two world wars, up to and including its present roles in counter-espionage and counter-terrorism 
<br/><br/><label>ISBN: </label>9780141023304 
<br/><br/><label>Subjects--Corporate Names: </label><br/>Great Britain. MI5 --History