Siegel, S., & Castellan, N. J. (1988). Nonparametric statistics for the behavioral sciences (Second edition.). McGraw-Hill Book Company.
Chicago-viite (17. p.)Siegel, Sidney., ja N. John Castellan. Nonparametric Statistics for the Behavioral Sciences. Second edition. New York: McGraw-Hill Book Company, 1988.
MLA-viite (8. p.)Siegel, Sidney., ja N. John Castellan. Nonparametric Statistics for the Behavioral Sciences. Second edition. McGraw-Hill Book Company, 1988.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.