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. Bureau of Census and Statistics,"Uniestatistieke oor Vyftig Jaar : Jubileumuitgawe, 1910-1960 = Union statistics for fifty years : jubilee issue, 1910-1960",[Microfiche ed.],Chadwyck-Healey,1981,African official statistical serials on microfiche,,,,https://cir.nii.ac.jp/crid/1130292925981043852