1
by Osborn
Published 1993
2
Published 1985
3
by Corbin
Published 1998
4
by Collins
Published 1998
5
by Smart, 1927
Published 2008
6
by Gilson
Published 1999
7
by King
Published 2009
8
by Taylor, Mark C
Published 2007
9
by Hartz
Published 2007
10
Published 2006
11
by Matar
Published 2006
12
13
Published 1992
14
by Hamlyn, 1924-
Published 1992
15
16
17
by Stromberg
Published 1990
18
by Copleston
Published 2003
19
Published 1994
20
by Horner
Published 2000