Brase, C. H., & Brase, C. P. (1991). Understandable statistics: Concepts and methods (4th.ed.). D.C.Heath and Co..
Chicago Style (17th ed.) ZitazioaBrase, Charles Henry, eta Corrinne Pellillo Brase. Understandable Statistics: Concepts and Methods. 4th.ed. Lexington: D.C.Heath and Co., 1991.
MLA (9th ed.) ZitazioaBrase, Charles Henry, eta Corrinne Pellillo Brase. Understandable Statistics: Concepts and Methods. 4th.ed. D.C.Heath and Co., 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.