Zar, J. H. (1999). Biostatistical analysis (4th ed.). Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Zar, Jerrold H. Biostatistical Analysis. 4th ed. Upper Saddle River, NJ: Prentice-Hall, 1999.
Lua MLA (9ú heag.)Zar, Jerrold H. Biostatistical Analysis. 4th ed. Prentice-Hall, 1999.
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