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,Hydro-extractors : their safe construction and equipment,,"[International Labour Office],Published for the International Labour Office by P.S.King",1929,Studies and reports,,,,https://cir.nii.ac.jp/crid/1130282271338440576