Coal mine roof and rib control
Contributors: National Mine Health and Safety Academy
Series: Safety manual -- no. 18; Safety manual (National Mine Health and Safety Academy) -- no. 18
Publisher: U.S. Dept. of Labor, Mine Safety and Health Administration, National Mine Health and Safety Academy; For sale by the Supt. of Docs., U.S. G.P.O.
Published: 1980
Place of publication: [Washington, D.C.?]
Language: eng
Number of pages: 49
Subjects: Coal mines and mining -- United States -- Safety measures; Mine safety -- United States
Notes: "February 1980"--Cover

Inlcudes glossary

Bibliography: p. 48