United States Tariff Commission. (1920). Cotton yarn: Import and export trade in relation to tariff. GPO.
Chicago Style (17th ed.) CitationUnited States Tariff Commission. Cotton Yarn: Import and Export Trade in Relation to Tariff. [Washington]: GPO, 1920.
MLA (9th ed.) CitationUnited States Tariff Commission. Cotton Yarn: Import and Export Trade in Relation to Tariff. GPO, 1920.
Warning: These citations may not always be 100% accurate.