Fleiss, J. L. (1981). Statistical methods for rates and proportions. Wiley.
Lua i Stíl Chicago (17ú heag.)Fleiss, Joseph L. Statistical Methods for Rates and Proportions. NY: Wiley, 1981.
Lua MLA (9ú heag.)Fleiss, Joseph L. Statistical Methods for Rates and Proportions. Wiley, 1981.
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