BIBLIOGRAPHY
Many books are now available as e-books, some of the sites that hold titles as e-books can be found below.
Maps are also a very good internet resource maps from Texas University
Air University Library Bibliographies from the USA http://www.au.af.mil/au/aul/bibs/bib97.htm

Hinsley,
F.H. et al
History of the Second World War
British
Intelligence in the Second World War, vol 1: Its Influence on Strategy and
Operations
London: HMSO,
1986 Binding: Hardcover. Pages: xiii + 601.

Hinsley, F.H. et al History of the Second World
War
British Intelligence in the Second World
War, vol 2: Its Influence on Strategy and Operations
London: HMSO,
1981 Binding:
Hardcover. Pages: xvi + 850. (ISBN-10:
0521242908 | ISBN-13: 9780521242905)

Hinsley,
F.H. et al History of the Second World War
British Intelligence in the
Second World War, vol 3, pt 1: Its Influence on Strategy and Operations
London: HMSO,
1984 Binding: Hardcover. Pages: xvi + 693.

Hinsley, F.H. et al
History of the Second World War
British Intelligence in the
Second World War, vol 3, pt 2: Its Influence on Strategy and Operations
London: HMSO,
1988 Binding: Hardcover. Pages: xvi + 1038.

Hinsley,
F.H. et al
History of the Second World War
British Intelligence in the
Second World War, vol 4: Security and Counter-Intelligence
London: HMSO,
1990 Binding:
Hardcover. Pages: xii + 408.

Howard, Michael
History of the Second World War
British Intelligence in the Second
World War, vol 5: Strategic Deception
London: HMSO,
1990 Binding:
Hardcover. Pages: xiii + 271.

Hinsley,
F. H. and Alan Stripp
Codebreakers: The Inside Story
of Bletchley Park
London: Oxford
University Press, 2001 Binding:
Soft cover. Pages: xxi + 321.