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 medium and large firms,,"U. S. Dept. of Labor, Bureau of Labor Statistics ; for sale by the Supt. of Docs.",1987,Bulletin,,,,https://cir.nii.ac.jp/crid/1130282271251120128