Velleman Daniel J. (2023). How to prove it: A structured approach (3rd ed. Ver.3.). Cambridge University Press.
芝加哥风格引文Velleman Daniel J. How to Prove It: A Structured Approach. 3rd ed. Ver.3. UK: Cambridge University Press, 2023.
MLA引文Velleman Daniel J. How to Prove It: A Structured Approach. 3rd ed. Ver.3. Cambridge University Press, 2023.
警告：这些引文格式不一定是100％准确.