APA (7th ed.) Citation

United States. Bureau of Foreign and Domestic Commerce. (1923). Welsh coal trade in 1922. GPO.

Chicago Style (17th ed.) Citation

United States. Bureau of Foreign and Domestic Commerce. Welsh Coal Trade in 1922. [Washington]: GPO, 1923.

MLA (9th ed.) Citation

United States. Bureau of Foreign and Domestic Commerce. Welsh Coal Trade in 1922. GPO, 1923.

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