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
Puerto Rico. Bureau of Economics and Statistics,"Anuario estadístico, Puerto Rico : Statistical yearbook, 1948/49-1959, 1967, 1970",,Chadwyck-Healey,,Latin American and Caribbean official statistical serials on microfiche,,,,https://cir.nii.ac.jp/crid/1130000793820067584