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,"Directory of labor unions in the United States : national and international unions, state labor organizations",,[U.S. G.P.O.],1950,Bulletin,,,,https://cir.nii.ac.jp/crid/1130000798241131904