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
"Hassan, Yusuf Fadl and University of Khartoum. Sudan Research Unit and International Conference","Sudan in Africa : studies presented to the first International Conference sponsored by the Sudan Research Unit, 7-12 February, 1968",2nd ed,Khartoum University Press,1985,Sudan library series,,,,https://cir.nii.ac.jp/crid/1130000793830227072