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
"Gumedze, Sabelo and Institute for Security Studies (South Africa)",The private security sector in Africa : country series,,Institute for Security Studies,2008,ISS monograph series,,9781920114374,,https://cir.nii.ac.jp/crid/1130282272287464704