United States. Bureau of Labor Statistics & National Institute for Occupational Safety and Health. (2003). Respirator usage in private sector firms, 2001. U.S. Dept. of Labor, Bureau of Labor Statistics and U.S. Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health.
Chicago Style (17th ed.) CitationUnited States. Bureau of Labor Statistics and National Institute for Occupational Safety and Health. Respirator Usage in Private Sector Firms, 2001. [Washington, D.C.]: U.S. Dept. of Labor, Bureau of Labor Statistics and U.S. Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, 2003.
MLA (9th ed.) CitationUnited States. Bureau of Labor Statistics and National Institute for Occupational Safety and Health. Respirator Usage in Private Sector Firms, 2001. U.S. Dept. of Labor, Bureau of Labor Statistics and U.S. Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, 2003.