Kale 2002, p. 251. Kale, Madhavi (May 2002). "Reviewed Works: The Oxford History of the British Empire, Vol. III. The Nineteenth Century by William Roger Louis; The Oxford History of the British Empire, Vol. IV. The Twentieth Century by William Roger Louis, Judith Brown; The Oxford History of the British Empire, Vol. V. Historiography by William Roger Louis, Robin Winks". Social History. 27 (2). Abingdon, Oxfordshire, England: Taylor & Francis, Ltd.: 250–253. ISSN0307-1022. JSTOR4286892.
Oxford dictionary of national biography. British Academy., Oxford University Press. (Online ed.). Oxford. ISBN9780198614128. OCLC56568095.{{cite book}}: CS1 maint: others (link)
Kale 2002, p. 251. Kale, Madhavi (May 2002). "Reviewed Works: The Oxford History of the British Empire, Vol. III. The Nineteenth Century by William Roger Louis; The Oxford History of the British Empire, Vol. IV. The Twentieth Century by William Roger Louis, Judith Brown; The Oxford History of the British Empire, Vol. V. Historiography by William Roger Louis, Robin Winks". Social History. 27 (2). Abingdon, Oxfordshire, England: Taylor & Francis, Ltd.: 250–253. ISSN0307-1022. JSTOR4286892.