United States. Bureau of Mines. (1995). Improving the performance of longwall gob gas ventholes. Bureau of Mines, U.S. Dept. of the Interior.
Chicago Style (17th ed.) CitationUnited States. Bureau of Mines. Improving the Performance of Longwall Gob Gas Ventholes. Washington, DC: Bureau of Mines, U.S. Dept. of the Interior, 1995.
MLA (9th ed.) CitationUnited States. Bureau of Mines. Improving the Performance of Longwall Gob Gas Ventholes. Bureau of Mines, U.S. Dept. of the Interior, 1995.
Warning: These citations may not always be 100% accurate.