APA (7th ed.) Citation

(1940). American Flag Services in Foreign Trade and with United States Possessions as of Apr. 1, 1939, 1939. [s.n.].

Chicago Style (17th ed.) Citation

American Flag Services in Foreign Trade and with United States Possessions as of Apr. 1, 1939, 1939. [Washington]: [s.n.], 1940.

MLA (9th ed.) Citation

American Flag Services in Foreign Trade and with United States Possessions as of Apr. 1, 1939, 1939. [s.n.], 1940.