edited by Jeffrey C. Alexander and Steven Seidman
Cambridge University Press, 1994
Buku Teks
Council for Research in Values and Philosophy, 2008.
Buku Teks
Penguin,, 1972
Buku Teks
edited by W.G. Beasley
Charles E. Tuttle, 1988
Buku Teks
edited by Larry D. Benson & Siegfried Wenzel
Medieval Institute Publications, 1982
Buku Teks