Johnson,Norman L. (2015). Univariate Discrete Distributions (3rd.). Wiley-Interscience.
Lua i Stíl Chicago (17ú heag.)Johnson,Norman L. Univariate Discrete Distributions. 3rd. New Jersey: Wiley-Interscience, 2015.
Lua MLA (9ú heag.)Johnson,Norman L. Univariate Discrete Distributions. 3rd. Wiley-Interscience, 2015.
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