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,"Industry groups : manufacture and repair of watches and clocks, rubber stamps, pipemaking, buttons, buckles, etc., wattle bark grinding and compressing, taxidermists, theatrical properties, film producing and reconditioning, industries not elsewhere classified",,[Bureau of Statistics],1967,"Nywerheidsensusse, 1950-51 tot 1960-61 = Industrial censuses, 1950-51 to 1960-61",,,,https://cir.nii.ac.jp/crid/1130000797817542784