APA (7th ed.) Zitazioa

DOWNIE, N. M. (1974). Basic statistical methods. Harper and Row.

Chicago Style (17th ed.) Zitazioa

DOWNIE, Norville Morgan. Basic Statistical Methods. New York: Harper and Row, 1974.

MLA (9th ed.) Zitazioa

DOWNIE, Norville Morgan. Basic Statistical Methods. Harper and Row, 1974.