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
"Choe, Ehn Hyun and United Nations. Economic and Social Commission for Asia and the Pacific","Population aging in the Republic of Korea : report of a study undertaken in the Republic of Korea under the project ""Emerging issues of the aging of population""",,"Economic and Social Commission for Asia and the Pacific,United Nations",1989,Asian population studies series,,,,https://cir.nii.ac.jp/crid/1130000797950487168