APA (7th ed.) Citation

United States. Bureau of Mines. (1939). Correlation of analysis of coal with products of carbonization in externally heated retorts. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Mines. Correlation of Analysis of Coal with Products of Carbonization in Externally Heated Retorts. [Washington]: [s.n.], 1939.

MLA (9th ed.) Citation

United States. Bureau of Mines. Correlation of Analysis of Coal with Products of Carbonization in Externally Heated Retorts. [s.n.], 1939.