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. Central Statistical Services,"Accounting, auditing and bookkeeping services",,Central Statistical Service,1997,Census of professional and business services 1993,,0621176133,,https://cir.nii.ac.jp/crid/1130000794827002880