City of Nanaimo Parks, Recreation and Culture. 2014. Arbutus Tree Decline. Nanaimo, BC. Accessed Feb 26th, 2014. http://www.nanaimo.ca/assets/Departments/Parks~Rec~Culture/Parks/Parks_diseases_arbutus.pdf

Elliot, M. 1999. The Decline of the Pacific Madrone (Arbutus menziesii Pursh). Save Magnolias Madrones, Center for Urban Horticulture, Ecosystems Database Development & Research. p 48.

Elliot, M., R.L. Edmonds, and S. Mayer. 2002. Role of fungal diseases in decline of Pacific madrone. Northwest Science. 76(4): 293-303

Lea, T. 2006. Historical Garry Oak Ecosystems of Vancouver Island, British Columbia, pre-European Contact to the Present. Davidsonia 17(2):34-50. http://www.davidsonia.org/bc_garryoak

Parish, R. and S.M. Thomson. Tree Book Learning to recognize trees of British Columbia. British Columbia Ministry of Forests-Canadian Forest Service. Victoria, BC. 183 pp.

Cross-Linked Information Resources (CLIR): an umbrella search web application that allows users to use a single window to simultaneously search six provincial environmental and natural resource information e-libraries and provides access to digital documents in these e-libraries.