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,Summary report : manufacturing = Opsommingsverslag : fabriekswese,,[Bureau of Statistics],1967,"Nywerheidsensusse, 1950-51 tot 1960-61 = Industrial censuses, 1950-51 to 1960-61",,,,https://cir.nii.ac.jp/crid/1130000797258009984