Editing PC Bruno (section)

==References==
* [[Władysław Kozaczuk]], ''Enigma:  How the German Machine Cipher Was Broken, and How It Was Read by the Allies in World War Two'', edited and translated by [[Christopher Kasparek]], Frederick, MD, University Publications of America, 1984, {{ISBN|0-89093-547-5}}.
* [[Gustave Bertrand]], ''Enigma ou la plus grande énigme de la guerre 1939–1945'' (Enigma:  the Greatest Enigma of the War of 1939–1945), Paris, Librairie Plon, 1973.
* Stephen Budiansky, ''Battle of Wits'', a general account of World War II cryptology.
* [[Harry Hinsley|F.H. Hinsley]], ed., ''British Intelligence in the Second World War'', 4 volumes, London, Her Majesty's Stationery Office. 
* [[Harry Hinsley|F.H. Hinsley]] and Alan Stripp, eds., ''Codebreakers:  the Inside Story of Bletchley Park'', Oxford University Press, 1993, {{ISBN|0-19-820327-6}}:  a volume of recollections.
* [[Jorge Laplace|J. Laplace]] Productor: Ismael Gutiérrez and Playmedia Producciones, RTVE, ''Equipo D: los códigos olvidados'', Documentary, Spain 2019, 61 minutes.

[[Category:Cryptography organizations]]
[[Category:Cipher Bureau (Poland)]]
[[Category:Enigma machine]]
[[Category:Signals intelligence of World War II]]