References
- W. S. Macbean Knight, The History of the Great European War. (Caxton Pub.)
- A. Barrie, War Underground: the Tunnellers of the Great War. (Tom Donovan. London. 1961).
- L. Macdonald, They Called It Passchendaele. (Macmillan. London, 1984).
- Capt. W. G. Grieve and B. Newman, Tunnellers. (Herbert Jenkins (Anthony Shield Assoc.). London 1936).
- Extracts from Proceedings, Royal Engineer Board. (HMSO. London. 1917–1925).
- ,B. Mott, Personal Notebook.
- B. Stack, Handbook of Mining and Tunnelling Machinery. ( John Wiley and Sons. 1982).
- P. Varley, From Charing Cross to Baghdad: a History of the Whitaker Tunnel Boring Machine and the Channel Tunnel. 1880–1930. ( Eurotunnel, 1992).
- 'Through German Eyes', Report on article by Vice-Admiral Kirchhoff in Das Grossere Deutschland, 19 Dec. 1917.
- A. J. Smithers, Honourable Conquests. An Account of the Enduring Work of the Royal Engineers throughout the Empire. (Leo Cooper. London, 1992).
- M. R. Lane, The Story of the Steam Plough Works, Fowlers of Leeds. (Northgate Publishing Co., London, 1980).
- K. J. McMullen, Tunnelling Machines: Trials by Army Engineers 1916–19. (Claygate, 1919).
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