1
by Cohen, Martin
Published 2001
2
by Strayer, Robert
Published 1998
3
Published 1993
4
by Bowle, John
Published 1948
5
6
7
by Carty, Anthony.
Published 2007
8
Published 1992
9
10
11
12
13
14
Published 2003
15
by Moritani, Masanori
Published 1982
16
by Barber, Benjamin R, 1939-
Published 2003
17
by Zakaria, Fareed
Published 2003
18
by Pogge, Thomas.
Published 2010
19
by Toynebee, Arnold J.
Published 1946
20
by Lieshout, Robert H.
Published 1995