United States. Bureau of Foreign and Domestic Commerce. (1929). World export trade in chemicals. GPO.
Chicago Style (17th ed.) CitationUnited States. Bureau of Foreign and Domestic Commerce. World Export Trade in Chemicals. [Washington]: GPO, 1929.
MLA (9th ed.) CitationUnited States. Bureau of Foreign and Domestic Commerce. World Export Trade in Chemicals. GPO, 1929.
Warning: These citations may not always be 100% accurate.