1. Mendel BC, Lang AJ (2012) Wood for bioenergy: forests as a resource for biomass and biofuels. Forest History Society, Durham, NC, 68 pp
2. EIA (Energy Information Administration) (2011) History of energy consumption in the United States, 1775–2009. Washington, DC. Accessed 29 September 2015. http://www.eia.gov/todayinenergy/detail.cfm?id=10#
3. Society of American Foresters (1979) Forest biomass as an energy source. Study Report of a Task Force of the Society of American Foresters. Society of American Foresters, Washington, DC, 7 pp
4. Inman RE (1977) Silvicultural biomass farms. Vol 1 summary. MITRE Corporation, McLean, VA, 62 pp
5. EIA (Energy Information Administration) (2015) History of energy consumption in the United States, 1775–2009. Washington, DC. Accessed 29 September 2015. http://www.eia.gov/todayinenergy/detail.cfm?id=10#