1. (1982): “Occupational Skin Disease in California (with special reference to 1977)”. San Francisco: California Department of Industrial Relations.
2. Bureau of Labor Statistics, U.S. Department of Labor, Division of Periodic Surveys (1983): “Chapter 17. Occupational Health Statistics; Reprint from Handbook of Methods: Bulletin 2134–1”. Washington, D.C.: U.S. Government Printing Office.
3. Bureau of Labor Statistics, U.S. Department of Labor (1984): “Employment and Wages Annual Averages 1982: Bulletin 2215”. Washington, D.C.: U.S. Government Printing Office.
4. California Department of Food and Agriculture (1987): “Pesticide Use Report by Commodity”. Sacramento.
5. California Department of Food and Agriculture; Worker Health and Safety Unit (1983):, 1981, 1980, 1979, 1978 “Pesticide Illness Reports: 1983 HS-1186; 1981 HS-985; 1980 HS-849; 1979 HS-712; 1978 HS-65”. Sacramento.