APA-viite (7. p.)

Downie, N. M., & Heath,R.W. (1983). Basic statistical methods (5th ed.). National Book Store.

Chicago-viite (17. p.)

Downie, Norville M., ja Heath,R.W. Basic Statistical Methods. 5th ed. Manila: National Book Store, 1983.

MLA-viite (9. p.)

Downie, Norville M., ja Heath,R.W. Basic Statistical Methods. 5th ed. National Book Store, 1983.