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
International Conference of Labour Statisticians,"International standard classification of occupations : report prepared for the seventh International Conference of Labour Statisticians (Geneva, September 1949)",,International Labour Office,1949,Studies and reports,,,,https://cir.nii.ac.jp/crid/1130000794100631424