Search Results       Your search for [subject]Official secrets -- Great Britain -- History -- 20th century returned 1 record.           The Secret state : British internal security in the twentieth century. by Thurlow, Richard C.; Oxford, UK: Blackwell, 1995. Subject: Internal security -- Great Britain -- History -- 20th century; Official secrets -- Great Britain -- History -- 20th century; Great Britain -- Politics and government -- 20th century.          Add to Book Cart Relevance: 40.21%