Ruff, T. M. (2007). Recommendations for evaluating and implementing proximity warning systems on surface mining equipment. Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Spokane Research Laboratory.
Chicago Style (17th ed.) CitationRuff, T. M. Recommendations for Evaluating and Implementing Proximity Warning Systems on Surface Mining Equipment. Spokane, WA: Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Spokane Research Laboratory, 2007.
MLA (9th ed.) CitationRuff, T. M. Recommendations for Evaluating and Implementing Proximity Warning Systems on Surface Mining Equipment. Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Spokane Research Laboratory, 2007.