GCHQ : the uncensored story of Britain's most secret intelligence agency /
Aldrich, Richard J. 1961-
GCHQ : the uncensored story of Britain's most secret intelligence agency / Richard J. Aldrich. - Centenary edition. William Collins paperback edition. - London : William Collins, an imprint of Harper Collins Publishers, 2019. - 700 pages, 16 unnumbered pages of plates : illustrations, maps ; 20 cm.
Previous edition: 2010.
Includes bibliographical references (pages 650-669) and index.
9780008351809
Government Code and Cypher School (Great Britain)--History.
Great Britain. Government Communications Headquarters (1948- )
Espionage, British--History.
UB251 .G7 / A365 2019
GCHQ : the uncensored story of Britain's most secret intelligence agency / Richard J. Aldrich. - Centenary edition. William Collins paperback edition. - London : William Collins, an imprint of Harper Collins Publishers, 2019. - 700 pages, 16 unnumbered pages of plates : illustrations, maps ; 20 cm.
Previous edition: 2010.
Includes bibliographical references (pages 650-669) and index.
9780008351809
Government Code and Cypher School (Great Britain)--History.
Great Britain. Government Communications Headquarters (1948- )
Espionage, British--History.
UB251 .G7 / A365 2019