The Oldest Ally: Britain and the Portuguese Connection, 1936–1941, Woodbridge: Royal Historical Society/The Boydell Press, 228 pp.
Spain, Portugal and the Great Powers, 1931–1941, London: Palgrave Macmillan, 2005, 316 pp.
Dick Richardson and Glyn Stone, Decisions and Diplomacy: Essays in Twentieth Century International History, London: Routledge, 1994, 230 pp.
Alan Sharp and Glyn Stone, Anglo-French Relations in the Twentieth Century: Rivalry and Cooperation, London: Routledge, 2000, 355 pp.
Glyn Stone and T.G. Otte, Anglo-French Relations since the Late Eighteenth Century, London: Routledge, 2008, 274 pp.
Articles and essays
'The official British attitude to the Anglo-Portuguese alliance, 1910–1945', Journal of Contemporary History, vol. x, 4–1975, pp. 729–46.
'Britain, non-intervention and the Spanish Civil War', European Studies Review, vol. ix, 1–1979, pp. 129–49.
'Rearmament, War and the Bristol Aeroplane Company, 1935–1945' in Charles Harvey and John Press, Studies in the Business History of Bristol, Bristol: Bristol Academic Press, 1988, pp. 187–212.
'The European Great Powers and the Spanish Civil War, 1936–1939' in Robert Boyce and Esmonde Robertson, Paths to War: New Essays on the Origins of the Second World War, London: Macmillan, 1989, pp. 199–232.
'Britain, France and the Spanish problem, 1936–1939' in Dick Richardson and Glyn Stone, Decisions and Diplomacy: Essays in Twentieth Century International History, London: Routledge, 1994, pp. 129–52.
'Inglaterra, Portugal e a não beligerância Espanhola: 1940–1941', Ler História, vol. xxv, 1994, pp. 89–102.
'Britain, France and Franco's Spain in the aftermath of the Spanish Civil War', Diplomacy and Statecraft, vol. vi, 2–1995, pp. 373–407.
'Sir Robert Vansittart and Spain, 1931–1941' in Thomas Otte and Constantine Pagedas, Personalities, War and Diplomacy: Essays in International History, London: Frank Cass, 1997, pp. 127–57.
'The degree of British commitment to the restoration of democracy in Spain, 1939–1947' in Christian Leitz and Joe Dunthorn, Spain in an International Context: Civil War, World War, Cold War, Oxford: Berghahn Press, 1999, pp. 191–217.
'From entente to alliance: Anglo-French relations, 1935–1939' in Alan Sharp and Glyn Stone, Anglo-French Relations in the Twentieth Century: Rivalry and Cooperation, London: Routledge, 2000, pp. 180–204.
'Britain and Portuguese Africa, 1961–1965', Journal of Imperial and Commonwealth History, vol. xxviii, 2000, pp. 169–92.
'The British Government and the sale of arms to the lesser European powers, 1936–1939', Diplomacy and Statecraft, vol. xiv, 2003, pp. 237–70.
'Yvon Delbos and Anthony Eden: Anglo-French co-operation, 1936–1938', Diplomacy and Statecraft, vol. xvii, 2006, pp. 165–86.
'Britain and the provision of arms to Finland, 1936–1940' in Keith Hamilton and Edward Johnson, Arms and Disarmament in Diplomacy, London: Vallentine Mitchell, 2007, pp. 151–72