GIBBONS & GIBBONS. (1979). Nonparametric Statistical Inference Gibbons. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)GIBBONS agus GIBBONS. Nonparametric Statistical Inference Gibbons. McGraw-Hill, 1979.
Lua MLA (8ú heag.)GIBBONS agus GIBBONS. Nonparametric Statistical Inference Gibbons. McGraw-Hill, 1979.
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