Jaspers, K., & Grabau, R. F. (1971). Philosophy of existence. University of Pennsylvania Press.
芝加哥风格引文Jaspers, Karl, 与 Richard F. Grabau. Philosophy of Existence. Philadelphia: University of Pennsylvania Press, 1971.
MLA引文Jaspers, Karl, 与 Richard F. Grabau. Philosophy of Existence. University of Pennsylvania Press, 1971.
警告：这些引文格式不一定是100％准确.