Keylor, William R., 1944-
The twentieth-century world
Oxford University Press, 1996
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Black, C.E.
Twentieth Century Europe: a history
Alfred A. Knopf, 1966
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Stromberg, Roland N.
Europe in the twentieth century / Roland N. Stromberg
Prentice-Hall, 1997
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Kragh, Helge
Quantum Generations : A History of Physics in the twentieth century
Princeton University press, 1999
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Transformation of a continent: Europe in the twentieth century / edited by Gerhard L.Weinberg
edited by Gerhard L. Weinberg
Burgess, 1975
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