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 "Alchourrón, Carlos E. and Bulygin, Eugenio",Normative systems,,Springer-Verlag,1971,Library of exact philosophy,,"0387810196,9783709171202",,https://cir.nii.ac.jp/crid/1130282269986490624