著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Jessica Diggs,Activity Theory of Aging,Encyclopedia of Aging and Public Health,,Springer US,,,,79-81,https://cir.nii.ac.jp/crid/1360855569322787840,https://doi.org/10.1007/978-0-387-33754-8_9