Lachin, J. M. (2011). Biostatistical methods: The assessment of relative risks (2nd ed.). Wiley.
Lua i Stíl Chicago (17ú heag.)Lachin, John M. Biostatistical Methods: The Assessment of Relative Risks. 2nd ed. Hoboken, N.J.: Wiley, 2011.
Lua MLA (9ú heag.)Lachin, John M. Biostatistical Methods: The Assessment of Relative Risks. 2nd ed. Wiley, 2011.
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