3. Twentieth-century world Findley, Carter V., 1941- Belmont, CA: Wadsworth Cengage Learning, c2011. HIST320
5. Turbulent passage: a global history of the twentieth century Adas, Michael, 1943- New York : Pearson Longman, c2006. HIST220
7. Events that changed the world in the twentieth century Westport, Conn. : Greenwood Press, 1995. HIST320
8. Age of extremes: the short twentieth century, 1914-1991 Hobsbawm, E. J. (Eric J.), 1917-2012. London : Abacus, 1995, c1994.
