United States. Mine Safety and Health Administration. (2006). MSHA approved fan assemblies that incorporate pipe nipple extensions. [U.S. Dept. of Labor, Mine Safety and Health Administration].
Chicago Style (17th ed.) CitationUnited States. Mine Safety and Health Administration. MSHA Approved Fan Assemblies That Incorporate Pipe Nipple Extensions. [Arlington, Va.]: [U.S. Dept. of Labor, Mine Safety and Health Administration], 2006.
MLA (9th ed.) CitationUnited States. Mine Safety and Health Administration. MSHA Approved Fan Assemblies That Incorporate Pipe Nipple Extensions. [U.S. Dept. of Labor, Mine Safety and Health Administration], 2006.
Warning: These citations may not always be 100% accurate.