United States. Bureau of Labor Statistics. "Nonfatal Occupational Injuries and Illnesses Requiring Days Away from Work for State Government and Local Government Workers, 2008, USDL-10-0230," Nonfatal Occupational Injuries and Illnesses Requiring Days Away from Work (February 24, 2010). https://fraser.stlouisfed.org/title/9645/item/707208, accessed on January 17, 2026.