APA (7th ed.) Citation

United States. Bureau of Foreign and Domestic Commerce. (1932). World shipping trends. GPO.

Chicago Style (17th ed.) Citation

United States. Bureau of Foreign and Domestic Commerce. World Shipping Trends. [Washington]: GPO, 1932.

MLA (9th ed.) Citation

United States. Bureau of Foreign and Domestic Commerce. World Shipping Trends. GPO, 1932.

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