Profile
Friends
Friends of
Blog
Files
Pages
Raymond Morel 4039 days ago
other references :
and a picture to finish
see also Daniel Curtis http://www.ict-21.ch/l4d/pg/file/read/887467/preindustrial-societies-and-strategies-for-the-exploitation-of-resources-a-theoretical-framework-for-understanding-why-some-settlements-are-resilient-and-some-settlements-are-vulnerable-to-crisis-daniel-curtis
Download this