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
"Badal, Raphael K.",Origins of the underdevelopment of the Southern Sudan : British administrative neglect,,"Development Studies and Research Centre, Faculty of Economics and Social Sciences, University of Khartoum",1980,Monograph series (University of Khartoum),,,,https://cir.nii.ac.jp/crid/1130000794452971520