Copi.Irving M. (2004). Introduction to Logic (11.). Prentice-Hall of India.
芝加哥风格引文Copi.Irving M. Introduction to Logic. 11. New Delhi: Prentice-Hall of India, 2004.
MLA引文Copi.Irving M. Introduction to Logic. 11. Prentice-Hall of India, 2004.
警告：这些引文格式不一定是100％准确.