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 "宮川, 隆泰 and Ruokonen, Kyllikki",Japan : sources of economic and business information,,"Helsinki School of Economics and Business Administration, Library",1991,Selvityksiä E,,9517009364,,https://cir.nii.ac.jp/crid/1130000796694098688