Downie, N. M., & Heath,R.W. (1983). Basic statistical methods (5th ed.). National Book Store.
芝加哥风格引文Downie, Norville M., 与 Heath,R.W. Basic Statistical Methods. 5th ed. Manila: National Book Store, 1983.
MLA引文Downie, Norville M., 与 Heath,R.W. Basic Statistical Methods. 5th ed. National Book Store, 1983.
警告：这些引文格式不一定是100％准确.