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
"Ekechi, Felix K.","Missionary enterprise and rivalry in Igboland, 1857-1914",,Cass,1972,Cass library of African studies,,071462778X,,https://cir.nii.ac.jp/crid/1130282270633458688