Perspectives on world
Routledge, 1992
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Snyder, Louis L.
World in the twentieth century
Princeton University Press, 1964
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Schapiro, J. Salwyn
The world in crisis : political and social movement in the twentieth century
McGraw-Hill, 1950
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Calvocoressi, Peter
World politics since 1945
Longman, 1991
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Back to basics : state power in a contemporary world
Oxford University Press, 2013
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