1) Environment Canada. 2012. National Inventory Report 1990-2009 Part 3: Greenhouse Gas Sources and Sinks in Canada. The Canadian Government’s Submission to the UN Framework Convention on Climate Change. Online: http://ec.gc.ca/ges-ghg/default.asp?lang=En&n=83A34A7A-1
2) CRFA (Canadian Renewable Fuels Association). 2010. Growing Beyond Oil, Delivering Our Energy Future: A Report Card on the Canadian Renewable Fuels Industry. Online: http://www.greenfuels.org/uploads/documents/crfareportcardenglish2010final.pdf
3) MAFRI. (Manitoba Agriculture, Food and Rural Initiatives). 2010. Growing Green: The Manitoba Bioproducts Strategy. Online: http://www.gov.mb.ca/agriculture/pdf/the_manitoba_bioproducts_strategy.pdf
4) CFBF (California Farm Bureau Federation). 2011. Fuel Efficiency on the Farm. Online: http://www.cfbf.com/issues/energy/flex.cfm