Roof and rib fall accident and cost statistics
Subtitle: an in-depth study
By: by Deno M. Pappas.
Series: Information circular ;; 9151; Information circular (United States. Bureau of Mines) ;; 9151.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1987
Place of publication: Pittsburgh, Pa
Language: eng
Number of pages: 20
Subjects: Mine roof control.; Mine accidents.
Notes: Bibliography: p. 19-20.