United States. Mine Safety and Health Administration. (2011). Responsibility for proper assembly and maintenance of MSHA approved and certified mining machines and equipment. [U.S. Dept. of Labor, Mine Safety and Health Administration].
Chicago Style (17th ed.) CitationUnited States. Mine Safety and Health Administration. Responsibility for Proper Assembly and Maintenance of MSHA Approved and Certified Mining Machines and Equipment. [Arlington, Va.]: [U.S. Dept. of Labor, Mine Safety and Health Administration], 2011.
MLA (9th ed.) CitationUnited States. Mine Safety and Health Administration. Responsibility for Proper Assembly and Maintenance of MSHA Approved and Certified Mining Machines and Equipment. [U.S. Dept. of Labor, Mine Safety and Health Administration], 2011.