Remedial and strata replacement techniques on longwall faces
Subtitle: a report on the state of the art
By: by Robert S. Dalzell and Ernest A. Curth.
Contributors: Curth, Ernest A.
Series: Information circular / United States Department of the Interior, Bureau of Mines ;; 9014; Information circular (United States. Bureau of Mines) ;; 9014.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1985
Place of publication: Pittsburgh, Pa
Language: eng
Number of pages: 29
Subjects: Ground control (Mining); Coal mines and mining -- Safety measures.
Notes: Bibliography: p. 27-29.