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 "Tower, Edward and Willett, Thomas D.",The theory of optimum currency areas and exchange-rate flexibility,,"International Finance Section, Dept. of Economics, Princeton University",1976,Special papers in international economics,,,,https://cir.nii.ac.jp/crid/1130282268852288256