APA (7th ed.) Citation

United States. Department of Commerce. (1922). Factors in spontaneous combustion of coal. GPO.

Chicago Style (17th ed.) Citation

United States. Department of Commerce. Factors in Spontaneous Combustion of Coal. [Washington]: GPO, 1922.

MLA (9th ed.) Citation

United States. Department of Commerce. Factors in Spontaneous Combustion of Coal. GPO, 1922.

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