Schatzel, S. J., Finfinger, G. L., & Cervik, J. (1982). Underground gob gas drainage during longwall mining. U.S. Dept. of the Interior, Bureau of Mines.
Chicago Style (17th ed.) CitationSchatzel, Steven J., Gerald L. Finfinger, and Joseph Cervik. Underground Gob Gas Drainage During Longwall Mining. Pgh. [i.e. Pittsburgh], Pa.: U.S. Dept. of the Interior, Bureau of Mines, 1982.
MLA (9th ed.) CitationSchatzel, Steven J., et al. Underground Gob Gas Drainage During Longwall Mining. U.S. Dept. of the Interior, Bureau of Mines, 1982.
Warning: These citations may not always be 100% accurate.