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 "Ofuho, Cirino Hiteng",Discourses on liberation and democracy in Sub-Saharan Africa : The cases of Eritrea and Ethiopia,,Supplied by the British Library Document Supply Centre,1997,British thesis service,,,,https://cir.nii.ac.jp/crid/1130282272544707712