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 South Africa. Dept. of Statistics,Materials purchased and manufactures sold = Materiaal aangekoop en vervaardigde artikels verkoop,,Central Statistical Service,1994,CSS report = SDD-verslag,,0621158941,,https://cir.nii.ac.jp/crid/1130282270215204736