The valley of the shadow of death : an account of the Royal Air Force Bomber Command night bombing and minelaying operations including 'The Battle of the Ruhr' March 5th/6th to July 18th/19th, 1943 /
Phillips, J. Alwyn.
New Malden : AirResearch,
1992.
Great Britain. Royal Air Force. Bomber Command
World War, 1939-1945