Access denied : the practice and policy of global Internet filtering 
edited by Ronald Deibert ... [et al.] 
 - Cambridge, Mass  MIT Press  c2008 
 - xv, 449 p. : ill., maps ; 23 cm 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780262541961 
<br/><br/><label>ISSN: </label>2007010334 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers - Access control<br/>Internet - Censorship<br/>Internet - Government policy
<br/><br/><label>Dewey Class. No.: </label>005.8 DEI