1
by Bengelsdorf, Carollee
Published 1994
2
by Alterman, Eric.
Published 2011
3
by Black, George, 1949-
Published 1993
4
by Huntington, Samuel P.
Published 1991
5
by Sorpong Peou
Published 2000
6
Published 1990
7
by Hartlyn, Jonathan
Published 1998
8
by Taras, Ray, 1946-
Published 1995
9
by Black, George
Published 1993
10
Published 1996
11
by Huntington, Samuel P.
Published 1991
12
Published 1990
13
Published 2007
14
by Cabrita, Joao M.
Published 2001
15
by Blitz, Amy, 1961-
Published 2000
16
17
by Sisk, Timothy D, 1960-
Published 1992
18
by Arghiros, Daniel
Published 2001
19
by Gill, Graeme
Published 2000
20
by Vanhanen, Tatu
Published 1990