United States Tariff Commission. (1920). Barytes, barium chemical, and lithopone industries, including costs of production, 1919. GPO.
Chicago Style (17th ed.) CitationUnited States Tariff Commission. Barytes, Barium Chemical, and Lithopone Industries, Including Costs of Production, 1919. [Washington]: GPO, 1920.
MLA (9th ed.) CitationUnited States Tariff Commission. Barytes, Barium Chemical, and Lithopone Industries, Including Costs of Production, 1919. GPO, 1920.
Warning: These citations may not always be 100% accurate.