1
Published 2007
2
by Rinehart
Published 2006
3
by Ruse
Published 2005
4
Published 2006
5
by Craig
Published 2001
6
Published 1954
7
by Wright
Published 2006
8
by Forest
Published 2003
9
10
by Miles
Published 2008
11
12
by Heddendorf
Published 2009
13
14
by Blanchard
Published 1993
15
by Potts
Published 1980
16
by Swidler
Published 1990
17
by Shorter
Published 1988
18
by Fraser
Published 1992
19
20
by Meilaender
Published 2005