Braun, Hans-Joachim
The German economy in the twentieth century
Routledge, 1990
 Buku Teks
Namho, Lee
Twentieth-century Korean literature
EastBridge, 2005
 Buku Teks
Namho, Lee
Twentieth century Korean literature
East Bridge, 2005
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Moore, Harry T.
Twentieth-century Russian literature
Heinemann, 1976
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Ward, A.C.
Twentieth-century literature 1901-1950
The English Language Book, 1928
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