1
by Mazilu, Dumitru
Published 1985
2
by Holm, Hans-Henrik, 1951-
Published 1995
3
by Jaffa, Harry V.
Published 1965
4
5
by Lim, Kit Siang
Published 1986
6
by Tawney, R. H, 1880-1962
Published 1964
7
by Youngs, Gillian, 1956-
Published 2007
8
by Mill, John Stuart, 1806-1873
Published 1989
9
by Jones, Charles A.
Published 1983
10
Published 2002
11
by Waligorski, Conrad
Published 1990
12
by Holm, Hans Henrik, 1951-
Published 1995
13
Published 2005