Norell, S. E. (1992). A Short Course in Epidemiology. Raven Press.
Tohutoru Kātū Chicago (17th ed.)Norell, Staffan E. A Short Course in Epidemiology. New York: Raven Press, 1992.
Tohutoro MLA (9th ed.)Norell, Staffan E. A Short Course in Epidemiology. Raven Press, 1992.
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