United States. Bureau of Foreign and Domestic Commerce. (1922). Trade of U.S. in 1921 stated in international statistical classification. GPO.
Chicago Style (17th ed.) CitationUnited States. Bureau of Foreign and Domestic Commerce. Trade of U.S. in 1921 Stated in International Statistical Classification. [Washington]: GPO, 1922.
MLA (9th ed.) CitationUnited States. Bureau of Foreign and Domestic Commerce. Trade of U.S. in 1921 Stated in International Statistical Classification. GPO, 1922.
Warning: These citations may not always be 100% accurate.