United States. Bureau of Mines. (1939). Physical and chemical properties of cokes made or used in Washington. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Mines. Physical and Chemical Properties of Cokes Made or Used in Washington. [Washington]: [s.n.], 1939.
MLA (9th ed.) CitationUnited States. Bureau of Mines. Physical and Chemical Properties of Cokes Made or Used in Washington. [s.n.], 1939.
Warning: These citations may not always be 100% accurate.