Raymond Morel 4037 days ago
APPRENDRE DU PASSE !!!!!
Collapse of Complex Societies by Dr. Joseph Tainter (2 of 7)
Mise en ligne le 17 déc. 2010
http:/
This is part 2 of 7 of a keynote talk delivered to the 2010 International Conference on Sustainability: Energy, Economy, and Environment organized by Local Future nonprofit and directed by Aaron Wissner.
·