The future ef philosophy : towards the twenty-first century/ Edited by: Oliver Leaman
Routledge , 1998
 Buku Teks
A history of women philosophers
edited by Mary Ellen Waithe
Kluwer Academic, 1995
 Buku Teks
One hundred twentieth-century philosophers
edited by Stuart C. Brown, Diane Collinson, Robert Wilkinson
Routledge, 1998
 Buku Teks
Keylor, William R., 1944-
The twentieth-century world
Oxford University Press, 1996
 Buku Teks
Gossel, Peter
Architecture in the twentieth century
Taschen, 2001
 Buku Teks