Draingage of methane from the overlying Pocahontas no. 4 coalbed from workings in the Pocahontas no. 3 coalbed
By: by Gerald L. Finfinger and Joseph Cervik
Contributors: Cervik, Joseph, joint author; United States. Bureau of Mines
Series: Report of investigations - Bureau of Mines ; 8359
Publisher: Dept. of the Interior, Bureau of Mines
Published: 1979
Place of publication: [Washington]
Language: eng
Number of pages: 15
Subjects: Coal mines and mining; Mine ventilation; Methane
Notes: Bibliography: p. 13