Pitcher, G. (1968). Wittgenstein: Ed. by George Pitcher. Macmillan.
Chicago-Zitierstil (17. Ausg.)Pitcher, George. Wittgenstein: Ed. by George Pitcher. London: Macmillan, 1968.
MLA-Zitierstil (8. Ausg.)Pitcher, George. Wittgenstein: Ed. by George Pitcher. Macmillan, 1968.
警告：這些引文格式不一定是100％准確.