APA (7th ed.) Citation

United States. War Shipping Administration. (1944). Merchant marine. U. S. merchant marine at war. [s.n.].

Chicago Style (17th ed.) Citation

United States. War Shipping Administration. Merchant Marine. U. S. Merchant Marine at War. [Washington]: [s.n.], 1944.

MLA (9th ed.) Citation

United States. War Shipping Administration. Merchant Marine. U. S. Merchant Marine at War. [s.n.], 1944.

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