Longwall gob degasification with surface ventilation boreholes above the Lower Kittanning coalbed / by T.D. Moore, Jr., Maurice Deul, and Fred N. Kissell ; Pittsburgh Mining and Safety Research Center

Author: Moore, T. D.
Published: Washington : U.S. Dept. of the Interior, Bureau of Mines, 1976.
Physical Description: 3 unnumbered pages, 13 pages : illustrations ; 27 cm.
Additional Creators: Deul, Maurice, Kissell, Fred N., and United States. Bureau of Mines