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 "Buliř, Aleš and Reitmaier, Jürgen and International Monetary Fund. African Dept","The price incentive to smuggle and the cocoa supply in Ghana, 1950-96",,International Monetary Fund,1998,IMF working paper,,,,https://cir.nii.ac.jp/crid/1130000797047718144