APA aipamena

Downie, N., & Heath, R. (1984). Basic statistical methods (5th ed.). National Book Store.

Chicago Style aipamena

Downie, N.M, and R.W Heath. Basic Statistical Methods. 5th ed. Manila: National Book Store, 1984.

MLA aipamena

Downie, N.M, and R.W Heath. Basic Statistical Methods. 5th ed. National Book Store, 1984.