Secrecy and the media/  the official history of the United Kingdom's D-notice system 
Wilkinson,Nicholas 
 - 1st ed. 
 - London:  Routledge,  2009. 
 - 613 p. 
<br/><br/><label>ISBN: </label>9780415453752 
<br/><br/><label>Dewey Class. No.: </label>342.410853  / WIL/S