APA (7th ed.) Citation

United States. Maritime Commission. (1938). Comparative summary of water borne foreign commerce (in cargo tons of 2,240 lbs.), calendar years 1921-36. [s.n.].

Chicago Style (17th ed.) Citation

United States. Maritime Commission. Comparative Summary of Water Borne Foreign Commerce (in Cargo Tons of 2,240 Lbs.), Calendar Years 1921-36. [Washington]: [s.n.], 1938.

MLA (9th ed.) Citation

United States. Maritime Commission. Comparative Summary of Water Borne Foreign Commerce (in Cargo Tons of 2,240 Lbs.), Calendar Years 1921-36. [s.n.], 1938.