O'Toole, A. L. (1964). Elementary practical statistics. New York : Macmillan.
芝加哥风格引文O'Toole, Alphonsus Lawrence. Elementary Practical Statistics. New York : Macmillan, 1964.
MLA引文O'Toole, Alphonsus Lawrence. Elementary Practical Statistics. New York : Macmillan, 1964.
警告：这些引文格式不一定是100％准确.