Safety and health standards applicable to underground metal and nonmetal mining and milling operations
By: compiled by U.S. Department of Labor, Mine Safety and Health Administration, Metal and Nonmetal Mine Safety and Health.
Contributors: United States. Metal and Nonmetal Mine Safety and Health.
Publisher: The Administration; For sale by the Supt. of Docs., U.S. G.P.O.
Published: 1985
Place of publication: Arlington, VA; Washington, D.C
Language: eng
Subjects: Mine safety -- United States.
Notes: "May 1985."

"30 CFR part 57."