APA (7th ed.) Citation

United States. Bureau of Customs. (1939). United States customs information for passengers from overseas. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Customs. United States Customs Information for Passengers from Overseas. [Washington]: [s.n.], 1939.

MLA (9th ed.) Citation

United States. Bureau of Customs. United States Customs Information for Passengers from Overseas. [s.n.], 1939.

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