1. , , (1989): “Research Methods in Occupational Epidemiology.” New York: Oxford University Press.
2. Increased risk of lung cancer in the melting department of a second ontario steel manufacturer
3. National Research Council (1988): “Health Risks of Radon and Other Internally Deposited Alpha-Emitters (BEIR IV).” Washington, DC: National Academy Press.
4. (1986): “Modern Epidemiology.” Boston: Little, Brown.
5. SERC (1988): “EGRET Statistical Software.” Seattle: Statistics and Epidemiology Research Corporation.