Kleinbaum,David G. Kupper, l. L. M. (1982). Epidemiologic research: Principles and quantitative methods. John Wiley & Sons, Inc.
Lua i Stíl Chicago (17ú heag.)Kleinbaum,David G. Kupper, lawrence L. Morgenstern. Epidemiologic Research: Principles and Quantitative Methods. New York: John Wiley & Sons, Inc, 1982.
Lua MLA (8ú heag.)Kleinbaum,David G. Kupper, lawrence L. Morgenstern. Epidemiologic Research: Principles and Quantitative Methods. John Wiley & Sons, Inc, 1982.
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