Ellis 1962, pp. 302, 303, 403, 480. Ellis, Major L. F.; Allen, Captain G. R. G.; Warhurst, Lieutenant-Colonel A. E. & Robb, Air Chief-Marshal Sir J. (1962). Butler, J. R. M. (ed.). Victory in the West: The Battle of Normandy. History of the Second World War United Kingdom Military Series. Vol. I (Naval & Military Press 2004 ed.). London: HMSO. ISBN1-84574-058-0. OCLC276814706.
Ellis 1962, p. 175. Ellis, Major L. F.; Allen, Captain G. R. G.; Warhurst, Lieutenant-Colonel A. E. & Robb, Air Chief-Marshal Sir J. (1962). Butler, J. R. M. (ed.). Victory in the West: The Battle of Normandy. History of the Second World War United Kingdom Military Series. Vol. I (Naval & Military Press 2004 ed.). London: HMSO. ISBN1-84574-058-0. OCLC276814706.
Ellis 1962, pp. 176, 209. Ellis, Major L. F.; Allen, Captain G. R. G.; Warhurst, Lieutenant-Colonel A. E. & Robb, Air Chief-Marshal Sir J. (1962). Butler, J. R. M. (ed.). Victory in the West: The Battle of Normandy. History of the Second World War United Kingdom Military Series. Vol. I (Naval & Military Press 2004 ed.). London: HMSO. ISBN1-84574-058-0. OCLC276814706.
Ellis 1962, p. 231. Ellis, Major L. F.; Allen, Captain G. R. G.; Warhurst, Lieutenant-Colonel A. E. & Robb, Air Chief-Marshal Sir J. (1962). Butler, J. R. M. (ed.). Victory in the West: The Battle of Normandy. History of the Second World War United Kingdom Military Series. Vol. I (Naval & Military Press 2004 ed.). London: HMSO. ISBN1-84574-058-0. OCLC276814706.