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 "Gregory, David D.",Standing to sue in environmental litigation in the United States of America,,International Union for Conservation of Nature and Natural Resources,1972,IUCN environmental policy and law paper,,,,https://cir.nii.ac.jp/crid/1130282271234338304