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 "Beham, Markus P.","State interest and the sources of international law : doctrine, morality, and non-treaty law",,Routledge,2018,Routledge research in international law,,9781138298781,,https://cir.nii.ac.jp/crid/1130000796215670528