SIEGEL, S. (1956). Nonparametric statistics; for the behavioral sciences. MaGraw-Hill.
Cita Chicago (17th ed.)SIEGEL, Sidney. Nonparametric Statistics; for the Behavioral Sciences. New York: MaGraw-Hill, 1956.
Cita MLA (9th ed.)SIEGEL, Sidney. Nonparametric Statistics; for the Behavioral Sciences. MaGraw-Hill, 1956.
Atenció: Aquestes cites poden no estar 100% correctes.