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
"Webster, Leila and Fidler, Peter",The informal sector and micro-finance institutions in West Africa,,World Bank,1996,World Bank regional and sectoral studies,,0821335979,,https://cir.nii.ac.jp/crid/1130000794419866624