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
"Obi, Cyril and Aas Rustad, Siri Camilla and Nordiska Afrikainstitutet",Oil and insurgency in the Niger Delta : managing the complex politics of petro-violence,,Zed Books,2011,Africa now,,9781848138070,,https://cir.nii.ac.jp/crid/1130282272708666368