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
"Christensen, Sandra and United States. Congressional Budget Office","Subsidies under medicare and the potential for disenrollment under a voluntary catastrophic program, September 1989",,William S. Hein,1991,Congressional Budget Office publications,,,,https://cir.nii.ac.jp/crid/1130000797700809600