1
by Marcuse
Published 1968
2
by Unger
Published 1975
3
by Gaus
Published 1990
4
by Poole, 1938-
Published 1991
5
by Gray, 1948-
Published 1993
6
by Gray, 1948-
Published 2000
7
Published 1992
8
by Holden
Published 1993
9
by Hayek
Published 1993
10
by Wisse
Published 1992
11
by Kymlicka
Published 1989
12
by Sandel
Published 1982
13
by Brittan
Published 1988
14
by Holton
Published 1992
15
16
by Gray, 1948
Published 1989
17
by Gray, 1948-
Published 1993