United States. Mine Safety and Health Administration. (2007). Maximum total exhaust system backpressure specification increase for Caterpillar Inc.'s (Caterpillar's) 3304 PCNA and 3306 PCNA diesel engines. [U.S. Dept. of Labor, Mine Safety and Health Administration].
Chicago Style (17th ed.) CitationUnited States. Mine Safety and Health Administration. Maximum Total Exhaust System Backpressure Specification Increase for Caterpillar Inc.'s (Caterpillar's) 3304 PCNA and 3306 PCNA Diesel Engines. [Arlington, Va.]: [U.S. Dept. of Labor, Mine Safety and Health Administration], 2007.
MLA (9th ed.) CitationUnited States. Mine Safety and Health Administration. Maximum Total Exhaust System Backpressure Specification Increase for Caterpillar Inc.'s (Caterpillar's) 3304 PCNA and 3306 PCNA Diesel Engines. [U.S. Dept. of Labor, Mine Safety and Health Administration], 2007.