COPI, I. M. (1969). Introduction to logic.-- 3rd ed. The Macmillan Company.
芝加哥风格引文COPI, Irving M. Introduction to Logic.-- 3rd Ed. London: The Macmillan Company, 1969.
MLA引文COPI, Irving M. Introduction to Logic.-- 3rd Ed. The Macmillan Company, 1969.
警告：这些引文格式不一定是100％准确.