An Official Information Act / 
[Public Secrets]. 
 - London (4 Cambridge Terrace, NW1 4JL) :  Outer Circle Policy Unit,  [1979?] 
 - [2],78p. 
<br/><br/><label>ISBN: </label> (sd) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Official secrets--Great Britain.