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 "Cruden, Alex",The Rwandan genocide,,"Greenhaven Press,Gale, Cengatge Learning",2010,Perspectives on modern world history,,9780737750072,,https://cir.nii.ac.jp/crid/1130282269919964544