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 "Spruyt, Hendrik",The sovereign state and its competitors : an analysis of systems change,,Princeton University Press,1996,Princeton studies in international history and politics,,0691029105,,https://cir.nii.ac.jp/crid/1130000797043787008