Reference List
C40, 2012, Trash to Cash Methane Capture Generates 3-4 million annually, viewed 10 September 2015 <http://www.c40.org/case_studies/trash-to-cash-methane-capture-generates-3-4-million-annually>
Underwood, C. 2004, Vancouver Landfill Gas Heat Greenhouses, viewed 29 August 2015 <http://cityfarmer.org/LandfillGas.html>
Underwood, C. 2004, Vancouver Landfill Gas Heat Greenhouses, viewed 29 August 2015 <http://cityfarmer.org/LandfillGas.html>