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 "Revenga, Ana and Ringold, Dena and Tracy, William Martin",Poverty and ethnicity : a cross-country study of Roma poverty in Central Europe,,World Bank,2002,World Bank technical paper,,082135339X,,https://cir.nii.ac.jp/crid/1130282270569976192