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 United States Tariff Commission,"Computed duties and equivalent ad valorem rates on imports into the United States from principal countries, 1929 and 1931",,U.S. G.P.O.,1933,Miscellaneous series,,,,https://cir.nii.ac.jp/crid/1130000794642702976