APA (7th ed.) Citation

United States. Bureau of Foreign and Domestic Commerce. (1931). Mid-year review of world shipping. GPO.

Chicago Style (17th ed.) Citation

United States. Bureau of Foreign and Domestic Commerce. Mid-year Review of World Shipping. [Washington]: GPO, 1931.

MLA (9th ed.) Citation

United States. Bureau of Foreign and Domestic Commerce. Mid-year Review of World Shipping. GPO, 1931.

Warning: These citations may not always be 100% accurate.