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
"Akanji, Bola and Nigerian Institute of Social and Economic Research",Cocoa marketing under Nigeria's structural adjustment programme,,Nigerian Institute of Social and Economic Research,1992,N.I.S.E.R monograph series,,978181280X,,https://cir.nii.ac.jp/crid/1130282271981890816