Litwack, E. B. (2009). Wittgenstein and value: The quest for meaning. Continuum.
芝加哥风格引文Litwack, Eric B. Wittgenstein and Value: The Quest for Meaning. London ; New York: Continuum, 2009.
MLA引文Litwack, Eric B. Wittgenstein and Value: The Quest for Meaning. Continuum, 2009.
警告：这些引文格式不一定是100％准确.