Dyfyniad APA

Downie, N., & Health, R. (1974). Basic statistical methods/4e (4th ed.). Harper $Row.

Dyfyniad Arddull Chicago

Downie, N.M, and R.W Health. Basic Statistical Methods/4e. 4th ed. New York: Harper $Row, 1974.

Dyfyniad MLA

Downie, N.M, and R.W Health. Basic Statistical Methods/4e. 4th ed. Harper $Row, 1974.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.