Knowledge strengthens the arm : the background to the training of the Intelligence Officers in the Intelligence Corps in the Second World War and the sequel to / Hugh Skillen.

by Skillen, Hugh
Published: Pinner : Privately printed, 1990

Library: The Wiener Library for the Study of the Holocaust & Genocide (London)

Enigma and its Achilles heel / Hugh Skillen.

by Skillen, Hugh
Published: Pinner : Privately printed, 1992

Library: The Wiener Library for the Study of the Holocaust & Genocide (London)

Spies of the airwaves : a history of Y sections during the Second World War / Hugh Skillen.

by Skillen, Hugh
Published: Pinner : Privately printed, 1989

Library: The Wiener Library for the Study of the Holocaust & Genocide (London)

The Enigma Symposium 1997 / Hugh Skillen.

by Skillen, Hugh
Published: Pinner : Privately printed, 1997

Library: The Wiener Library for the Study of the Holocaust & Genocide (London)