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
"Adetula, Victor and Bereketeab, Redie and Obi, Cyril",Regional economic communities and peacebuilding in Africa : lessons from ECOWAS and IGAD,,Routledge,2022,Routledge studies on African politics and international relations,,9780367556341,,https://cir.nii.ac.jp/crid/1130860443261656194