Hennekens, C. H., Buring, J. E., & Mayrent, S. L. (1987). Epidemiology in medicine. Little, Brown.
Lua i Stíl Chicago (17ú heag.)Hennekens, Charles H., Julie E. Buring, agus Sherry L. Mayrent. Epidemiology in Medicine. Boston: Little, Brown, 1987.
Lua MLA (8ú heag.)Hennekens, Charles H., et al. Epidemiology in Medicine. Little, Brown, 1987.
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