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Williams, M., Smith,Tony, Mayall, J., Palliser, M., Plamenatz, J., Davis, H. B., & Smith, A. (1989). International relations in the twentieth century: A reader. London: Macmillan Education.

Williams, Marc[ed.], Smith,Tony, James Mayall, Michael Palliser, John Plamenatz, Horace B. Davis, and A.D Smith. International Relations in the Twentieth Century: A Reader. London: Macmillan Education, 1989.

Williams, Marc[ed.], et al. International Relations in the Twentieth Century: A Reader. London: Macmillan Education, 1989.