United States. Bureau of Mines. (1977). Advancing coal mining technology research, development, and demonstration in fiscal year 1977. Dept. of the Interior, Bureau of Mines.
Chicago Style (17th ed.) CitationUnited States. Bureau of Mines. Advancing Coal Mining Technology Research, Development, and Demonstration in Fiscal Year 1977. Washington: Dept. of the Interior, Bureau of Mines, 1977.
MLA (9th ed.) CitationUnited States. Bureau of Mines. Advancing Coal Mining Technology Research, Development, and Demonstration in Fiscal Year 1977. Dept. of the Interior, Bureau of Mines, 1977.
Warning: These citations may not always be 100% accurate.