Charbonneau, R.2007-11-131999-03-312007-11-131986http://hdl.handle.net/10625/22356French version available in IDRC Digital Library: Visite au fundo berlinp. 16-17enSUBSISTENCE FARMINGSOIL DEGRADATIONGRASSLANDSLIVESTOCKAGRICULTURAL MANAGEMENTAMAZON REGIONPioneers of the AmazonIn search of workJournal Article