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,Employee benefits in a changing economy : a BLS chartbook,,"U.S. Department of Labor, Bureau of Labor Statistics : For sale by the U.S. G.P.O., Supt. of Docs.",1992,Bulletin,,0160418313,,https://cir.nii.ac.jp/crid/1130000794984365568