http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
USDA Forest Service Resource Bulletin NC
United States Department of Agriculture Forest Service Resource Bulletin North Central
Comissão Executiva do Plano da Lavoura Cacaueira
Universidade Federal do Paraná Departamento de Ciências Florestais