References
- Admiralty: Historical Section: Records used for Official History, First World War (ADM 137) .
- Admiralty: Naval Intelligence Division and Operational Intelligence Centre: Intelligence Reports and Papers (ADM 223). The National Archives, London (TNA) .
- Beesly , P. 1982 . Room 40: British Naval Intelligence 1914–1918 . London : Hamish Hamilton .
- Churchill , Winston S. 1927 . The World Crisis, 1916–1918, Part I . London : Thornton Butterworth .
- Clarke , W. F. Papers. Churchill College Cambridge. Archive Centre (CAC).
- Denniston , A. G. Papers. Churchill College Cambridge. Archive Centre (CAC).
- Denniston , R. 2007 . Thirty Secret Years. A. G. Denniston's Work in Signals Intelligence, 1914–1944 . Clifton-upon-Teme : Polperro Heritage Press .
- Edmonds , C. J. Papers. St. Antony's College. Middle East Centre (MEC).
- Edmonds , C. J. 1960 . “The January Persian Gulf Prelude to the Zimmermann Telegram,” Journal of the Royal Central Asian Society , 47 : 58 – 67 .
- Foreign Office and Foreign and Commonwealth Office: Embassy and Consulates, Iran (formerly Persia): General Correspondence (FO 248). The National Archives, London (TNA) .
- Foreign Office: Library and Research Department. General Correspondence from 1906 (FO 370). The National Archives, London (TNA) .
- Foreign Office: Political Departments. General and Political Correspondence 1906–1966 (FO 371). The National Archives, London (TNA).
- Freeman , P. 2006 . “The Zimmermann Telegram Revisited: A Reconciliation of the Primary Sources,” Cryptologia , 30 ( 2 ): 98 – 150 .
- Friedman , W. F. and C. J. Mendelsohn . 1938 . The Zimmermann Telegram of January 16, 1917 and its Cryptographic Background . Walnut Creek , CA : Aegean Park Press .
- Gannon , P. 2010 . Inside Room 40 . Hersham : Ian Allan .
- German War Documents Project: University of Michigan Selection (GFM 14), National Archives, London (TNA) .
- German War Documents Project: German Foreign Ministry Archive: Miscellanea (GFM 19/58), The National Archives, London (TNA) .
- Gehrke , U. 1960 . Persien in der Deutschen Orientpolitik. Wahrend des Ersten Weltkrieges . Stuttgart : W. Khlhammer GMBH .
- Government Code and Cypher School and Predecessors: Personal Papers, Unofficial Histories, Foreign Office X Files and Miscellaneous Records (HW 3), The National Archives, London (TNA) .
- Hall , Admiral Sir W. Reginald Hall Papers. Churchill College, Cambridge, Archive Centre.
- Hall , Admiral Sir W. Reginald , and A. J. Peaslee . 1944 . Three Wars with Germany . New York : G. P. Putnam's Sons .
- Hardinge of Penshurst, Lord. Hardinge Papers. Cambridge University Library (CUL) .
- Hendrick , B. J. 1925 . The Life and Letters of Walter H. Page, Volume 3 . London : Heinemann .
- Hopkirk , P. 1994 . On Secret Service East of Constantinople . London : John Murray .
- India Office Records (IOR), Political and Secret Department Records, Demi-Official Correspondence, Secretary's Letters and Secret Service Intelligence Papers. Papers of the Secretary, India Office. Political and Secret Department: Secret Service and Intelligence Matters (L/PS/8/71), British Library, Asia, Pacific, and African Collections (BL) .
- India Office Records (IOR), Political and Secret Department Records: Departmental Papers: Political and Secret Separate (or Subject) Files (L/PS/10/482), British Library, Asia, Pacific, and African Collections (BL) .
- India Office Records (IOR), Political and Secret Department Records: Departmental Papers: Political and Secret Annual Files (IOR/L/PS/11), British Library, Asia, Pacific, and African Collections (BL) .
- India Office Records (IOR), Private Papers, Mss. Eur. C732, “A Career in Persia, 1894–1930.” Typed ms. of diaries of Eric Mortimer Norris, Indo-European Telegraph Department, 1894–1930. British Library, Asia, Pacific, and African Collections (BL) .
- James , Admiral Sir William . 1955 . The Eyes of the Navy: A Biographical Study of Admiral Sir Reginald Hall . London : Methuen .
- Johnson , R. 2006 . Spying for Empire . London : Greenwood .
- Kahn , D. 1967 . The Codebreakers: The Story of Secret Writing . London : Weidenfeld & Nicolson .
- Kahn , D. 1981 . “Some Special War Work. Part II Sir Alfred Ewing. A Lecture to the Edinburgh Philosophical Institution December 13, 1927,” Cryptologia , 5 ( 1 ): 33 – 39 .
- Kahn , D. Autumn 1999 . “Edward Bell and his Zimmermann Telegram Memoranda,” Intelligence and National Security , 14 ( 3 ): 143 – 159 .
- Landau , Captain H. 1937 . The Enemy Within . New York : G. P. Putnam's Sons .
- McKale , D. 1998 . War by Revolution . Kent State U.P .
- McMeekin , S. 2010 . The Berlin-Baghdad Express . Cambridge , MA : The Belknap Press .
- Mendelsohn , C. 1937 . Studies in German Diplomatic Codes Employed during the First World War . Washington : War Department, Office of the Chief Signal Officer . NACP, RG 457, Historical Cryptological Collection, Box 745.
- Moberly , Brigadier. 1987 . Official History of Operations in Persia . London : HMSO .
- Niedermayer , O. 1925. Unter der Glutsonne Irans . Dachau : Einhornverlag.
- Popplewell , R. 1995 . Intelligence and Imperial Defence . London : Cass .
- Ramsay , D. 2009 . “Blinker” Hall: Spymaster . Port Stroud : Spellmount .
- Room 40 and Successors: World War 1 Official Histories (HW 7). The National Archives, London (TNA) .
- Sykes , C. 1936 . Wassmuss: The German Lawrence . London : Longmans and Paderborn: Schöningh .
- Tuchman , B. 1958 . The Zimmermann Telegram: How the U.S.A. Entered the Great War . New York : Viking Press . Reprinted edition with new May 1966 Foreword. London: Papermac/Macmillan, 1981 .
- Tuohy , F. 1920 . The Secret Corps . London : John Murray .
- Von Mikusch , D. 1937 . Wassmuss, der deutsche Lawrence . Berlin : Buchergilde Gutenberg .
- Von Zur Gathen , J. 2007 . “Zimmermann Telegram: The Original Draft,” Cryptologia , 31 ( 1 ): 2 – 37 .
- Wilson , A. 1930 . Loyalties: Mesopotamia, 1914–1917 . Oxford : Clarendon Press .
- Winstone , H. V. F. 1982 . The Illicit Adventure . London : Jonathan Cape .