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 "Weller, M. (Marc) and University of Cambridge. Research Centre for International Law",Regional peace-keeping and international enforcement : the Liberian crisis,,Cambridge University Press,1994,Cambridge international documents series,,0521477549,,https://cir.nii.ac.jp/crid/1130282269851701760