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
"Hacker, R. Scott and Hussain, Qaizar and Rajcoomar, B.R.H.S. and IMF Institute",Trading blocs and welfare : how trading bloc members are affected by new entrants,,International Monetary Fund,1998,IMF working paper,,,,https://cir.nii.ac.jp/crid/1130282268805590016