Ewen, David
The world of twentieth-century music
Prentice Hall, 1968
 Buku Referensi
Thwaite, Anthony
Twentieth-century English poetry : an introduction
Heineman, 1984
 Buku Teks
Proctor, George A.
Canadian music of the twentieth century / George Alfred Proctor
University of Toronto Press, 1980
 Buku Teks
Woodham, Jonatham M.
Twentieth-Century design
Oxford University Press, 1997
 Buku Teks
Revolutions of the late twentieth century
edited by Jack A. Goldstone, Ted Robert Gurr, Farrokh Moshiri
Westview Press, 1991
 Buku Teks