APA引文

Wittgenstein, L. (1997). Philosophical investigations (2 nd ed.). Blackwell.

Chicago Edition Citation

Wittgenstein, Ludwig. Philosophical Investigations. 2 nd ed. United Kingdom: Blackwell, 1997.

MLA引文

Wittgenstein, Ludwig. Philosophical Investigations. 2 nd ed. Blackwell, 1997.

警告：這些引文格式不一定是100％准確.