24 juillet 2007
Pierre Dansereau l ecologiste aux pieds nus
"De la classification ecologique" ~ ideologie pionnaire des annees 70
http://archives.radio-canada.ca/IDC-0-16-639-3512/sciences_technologies/pierre_dansereau/clip7
http://archives.cbc.ca/IDD-0-16-639/sciences_technologies/pierre_dansereau/
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