Stewart, J. (2008). Heiberg's Contingency regarded from the point of view of logic and other texts. Museum Tusculanum Press.
芝加哥风格引文Stewart, Jon. Heiberg's Contingency Regarded from the Point of View of Logic and Other Texts. Copenhagen, Denmark: Museum Tusculanum Press, 2008.
MLA引文Stewart, Jon. Heiberg's Contingency Regarded from the Point of View of Logic and Other Texts. Museum Tusculanum Press, 2008.
警告：这些引文格式不一定是100％准确.