APA (7th ed.) Citation

United States. Department of Commerce. (1923). Preparation, transportation, and combustion of powdered coal. GPO.

Chicago Style (17th ed.) Citation

United States. Department of Commerce. Preparation, Transportation, and Combustion of Powdered Coal. [Washington]: GPO, 1923.

MLA (9th ed.) Citation

United States. Department of Commerce. Preparation, Transportation, and Combustion of Powdered Coal. GPO, 1923.

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