United States. Department of Commerce. (1919). Determination of combustible matter in silicate and carbonate rocks. GPO.
Chicago Style (17th ed.) CitationUnited States. Department of Commerce. Determination of Combustible Matter in Silicate and Carbonate Rocks. [Washington]: GPO, 1919.
MLA (9th ed.) CitationUnited States. Department of Commerce. Determination of Combustible Matter in Silicate and Carbonate Rocks. GPO, 1919.
Warning: These citations may not always be 100% accurate.