Technical Articles
Territorial organization of clay mineral extraction
Amilton dos Santos Almeida; Marsis Cabral Jr.; Oswaldo Riuma Obata; Isabel Cristina Carvalho Fiammetti; Adão Aparecido Lanzieri Modesto; Lucia Santos Szendler Baladore; Fausto Luis Stefani; Flavio Sergio Jorge de Freitas