APA (7th ed.) Citation

(1922). Volume of U.S. trade, 1921; by ports of origin and destination. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Volume of U.S. Trade, 1921; by Ports of Origin and Destination. [Washington?]: U.S. Government Printing Office, 1922.

MLA (9th ed.) Citation

Volume of U.S. Trade, 1921; by Ports of Origin and Destination. U.S. Government Printing Office, 1922.