Energy Information Administration (EIA), 2005 Residential Energy Consumption Survey, February 2009. http://www.eia.doe.gov/emeu/recs/recspubuse05/pubuse05.html U.S. Energy Information Administration (EIA), 2003 Commercial Building Energy Consumption Surve (2007)

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Venue:http://www.eia.doe.gov/emeu/mecs/contents.html U.S. Environmental Protection Agency (EPA), Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990 – 2007, April 2009, US EPA 430-R-09-004. http://www.epa.gov/climatechange/emissions/usinventoryreport.htm