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 United States. Bureau of Labor Statistics. Industrial Relations Division,"Union agreements in the leather-tanning industry, 1943",,"U.S. Dept. of Labor, Bureau of Labor Statistics",1944,Bulletin,,,,https://cir.nii.ac.jp/crid/1130000794396591104