APA (7th ed.) Zitazioa
Spatz, C. (1992). Basic statistics: Tales of distributions (5th ed.). Brooks/Cole.
Chicago Style (17th ed.) Zitazioa
Spatz, Chris. Basic Statistics: Tales of Distributions. 5th ed. California: Brooks/Cole, 1992.
MLA (9th ed.) Zitazioa
Spatz, Chris. Basic Statistics: Tales of Distributions. 5th ed. Brooks/Cole, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.