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 Labour Office,Occupational exposure limits for airborne toxic substances : values of selected countries prepared from the ILO-CIS data base of exposure limits,3rd ed,International Labour Office,1991,Occupational safety and health series,,9221072932,,https://cir.nii.ac.jp/crid/1130000797506580608