Frampton, Kenneth
Studies in tectonic culture : the poetics of construction in nineteenth and twentieth century architecture
MIT Press, 1995
 Buku Teks
Anderson, Stanford
Peter behrens and a new architecture for the twentieth century / Stanford Anderson
MIT Press, 2000
 Buku Teks
Revolutions of the late twentieth century
edited by Jack A. Goldstone, Ted Robert Gurr, Farrokh Moshiri
Westview Press, 1991
 Buku Teks
Varga, Eugen, 1879-1964
Twentieth century capitalism
Foreign Languages Publishing House, 1961
 Buku Teks
Kohn, Hans
African nationalism in the twentieth century
D. Van Nostrand, 1965
 Buku Teks