APA-referens (7:e uppl.)

Siegel, S., & Castellan, N. J. (1988). Nonparametric statistics for the behavioral sciences (Second edition.). McGraw-Hill Book Company.

Chicago-referens (17:e uppl.)

Siegel, Sidney., och N. John Castellan. Nonparametric Statistics for the Behavioral Sciences. Second edition. New York: McGraw-Hill Book Company, 1988.

MLA-referens (8:e uppl.)

Siegel, Sidney., och N. John Castellan. Nonparametric Statistics for the Behavioral Sciences. Second edition. McGraw-Hill Book Company, 1988.