Claassen, A. (2007). An inquiry into the philosophical foundations of the human sciences. P. Lang.
芝加哥风格引文Claassen, Alfred. An Inquiry into the Philosophical Foundations of the Human Sciences. New York: P. Lang, 2007.
MLA引文Claassen, Alfred. An Inquiry into the Philosophical Foundations of the Human Sciences. P. Lang, 2007.
警告：这些引文格式不一定是100％准确.