Woods, Tim
Who's who of twentieth-century novelists
Roudledge , 2001
 Buku Referensi
Gray, Richard, 1944-
American poetry of the twentieth century
Longman, 1991
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Keylor, William R., 1944-
The twentieth-century world
Oxford University Press, 1996
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Findley, Carter V.
Twentieth-century world
Wadsworth and Cengage Learning, 2011
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Ewen, David
The world of twentieth-century music
Prentice Hall, 1968
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