United States. Bureau of Mines. (1938). Laboratories that make fire assays, analyses, and tests on ores, minerals, metals, and other inorganic substances [Revised]. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Mines. Laboratories That Make Fire Assays, Analyses, and Tests on Ores, Minerals, Metals, and Other Inorganic Substances [Revised]. [Washington]: [s.n.], 1938.
MLA (9th ed.) CitationUnited States. Bureau of Mines. Laboratories That Make Fire Assays, Analyses, and Tests on Ores, Minerals, Metals, and Other Inorganic Substances [Revised]. [s.n.], 1938.
Warning: These citations may not always be 100% accurate.