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. Dept. of Health and Human Services,"Income of the population 55 and over, 1982",,U.S. depertment of health and human service,1984,SSA pub,,,,https://cir.nii.ac.jp/crid/1130000796130963584