1
2
by Legrain, Philippe.
Published 2003
3
4
5
6
7
Published 2002
8
Published 2003
9
10
Published 2005
11
12
by Nye Jr.
Published 2004
13
by Moghadam, Valentine M.,1952
Published 2005
14
by Oosterveer, Peter
Published 2012
15
16
by Yergin, Daniel
Published 2011
17
Published 2002
18
19
Published 2003
20
Published 2005