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
"Kawka, Rupert","From Bulamari to Yerwa to metropolitan Maiduguri : interdisciplinary studies on the capital of Borno State, Nigeria",,R. Köppe,2002,Westafrikanische Studien,,3896454609,,https://cir.nii.ac.jp/crid/1130282272689503104