1. Key World Energy Statistics 2010;IEA,2010
2. Peaking of world oil production and its mitigation;Hirsch,2007
3. BP Statistical Review of World Energy;BP,2009
4. Economagic: Price of West Texas Intermediate Crude; Monthly NSA, Dollars Per Barrel. Economagic.com: Economic Time Series Page [online] n.d. [cited: June 30, 2010] (http://www.economagic.com/em-cgi/data.exe/var/west-texas-crude-long).
5. Jimmy Carter and the Energy Crisis of the 1970s—The “Crisis of Confidence” speech of July 15, 1979;Horowitz,2005