Longwall roof support technology in the eighties
Subtitle: a state-of-the-art report
By: by Ernest A. Curth and Jeffrey M. Listak.
Contributors: Listak, Jeffrey M.
Series: Information circular / United States Department of Interior, Bureau of Mines ;; 9066; Information circular (United States. Bureau of Mines) ;; 9066.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1986
Place of publication: Pittsburgh, Pa
Language: eng
Number of pages: 43
Subjects: Ground control (Mining); Longwall mining.
Notes: Bibliography: p. 35-37.