1. The transformation of the world: a global history of the nineteenth century Osterhammel, Jürgen, Princeton, NJ : Princeton University Press, c2014. CHI102 GEA202
2. Geographies of empire: European empires and colonies, c. 1880-1960 Butlin, R. A. (Robin Alan), 1938- Cambridge, England ; Cambridge University Press, 2009. HIST350
3. The Cambridge economic history of modern Britain New York : Cambridge University Press, 2014. HIST456
