1
by Dyson, Tim.
Published 2010
2
Published 1994
3
4
by Bartelmus, Peter
Published 1994
5
by Lomborg, Bjorn
Published 2007
6
Published 1995
7
by Ake, Claude
Published 1996
8
Published 2004
9
Published 1982
10
Published 1991
11
Published 1980
12
Published 2000
13
Published 1996
14
Published 1976
15
by Carley, Michael
Published 1984
16
Published 1996
17
Published 1993
18
by Smith, B. C
Published 1996
19
by Khor, Martin.
Published 2008
20
by Severino, Rodolfo C.
Published 2001