Davantage de lecture

David Brownstein (2006). Sunday Walks and Seed Traps: The Many Natural Histories of British Columbia Forest Conservation, 1890–1925, unpublished PhD Thesis, Institute for Resources, Environment and Sustainability, University of British Columbia, Vancouver.

Richard J. Campana (1999). Arboriculture: History and Development in North America, Michigan State University Press, East Lansing.

Paul Boyer (1978). Urban Masses and Moral Order in America, 1820–1920, Harvard University Press, Cambridge, Massachusetts.