Ahern. The Smile of Tragedy. Penn State University Press.
芝加哥风格引文Ahern. The Smile of Tragedy. Penn State University Press.
MLA引文Ahern. The Smile of Tragedy. Penn State University Press.
警告：这些引文格式不一定是100％准确.
APA引文
Ahern. The Smile of Tragedy. Penn State University Press.
芝加哥风格引文Ahern. The Smile of Tragedy. Penn State University Press.
MLA引文Ahern. The Smile of Tragedy. Penn State University Press.