1. Bureau of Labor Statistics, 1986. BLS News: BLS Reports on Survey of Occupational Injuries and Illnesses in 1985. United States Department of Labor. US Government Printing Office, Washington, DC.
2. Bureau of Labor Statistics, 1987. BLS News: BLS Reports on Survey of Occupational Injuries and Illnesses in 1986. United States Department of Labor. US Government Printing Office, Washington, DC.
3. Bureau of Labor Statistics, 1988. BLS News: BLS Reports on Survey of Occupational Injuries and Illnesses in 1987. United States Department of Labor. US Government Printing Office, Washington, DC.
4. Bureau of Labor Statistics, 1989. BLS News: BLS Reports on Survey of Occupational Injuries and Illnesses in 1988. United States Department of Labor. US Government Printing Office, Washington, DC.
5. Bureau of Labor Statistics, 1990. BLS News: BLS Reports on Survey of Occupational Injuries and Illnesses in 1989. United States Department of Labor. US Government Printing Office, Washington, DC.