APA (7th ed.) Citation

(1918). Trade in French and British West Africa for 1917. GPO.

Chicago Style (17th ed.) Citation

Trade in French and British West Africa for 1917. [Washington]: GPO, 1918.

MLA (9th ed.) Citation

Trade in French and British West Africa for 1917. GPO, 1918.

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