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 "El Sammani, Mohammed Osman",Jonglei Canal : dynamics of planned change in the Twic area,,"Graduate College, University of Khartoum,Distributed by Ithaca Press",1984,Graduate College publications,,0863720285,,https://cir.nii.ac.jp/crid/1130000795966326528