著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL Brazil. Divisão de Geologia e Mineralogia,"Chromo, molybdenio, nickel e tungstenio no Brasil",,Typ. do Ministerio da Agricultura,1931,Boletim,,,,https://cir.nii.ac.jp/crid/1130000795042217728