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
"May, Ernesto",Exchange controls and parallel market economies in Sub-Saharan Africa : focus on Ghana,,World Bank,1985,World Bank staff working papers,,0821304712,,https://cir.nii.ac.jp/crid/1130000797486664576