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 World Economic Conference and League of Nations. Secretariat. Economic and Financial Section,"System of fixing export prices . Dependence of trade on control of foreign exchange . Methods of assessment for the application of ad valorem duties . Variations in tariffs in accordance with the origin of goods, the place whence they come, their destination, etc. . Consular charges",,League of Nations,1927,Documentation,,,,https://cir.nii.ac.jp/crid/1971712334794972211