Powers. Zayd. University of Pennsylvania Press.
芝加哥风格引文Powers. Zayd. University of Pennsylvania Press.
MLA引文Powers. Zayd. University of Pennsylvania Press.
警告：这些引文格式不一定是100％准确.
APA引文
Powers. Zayd. University of Pennsylvania Press.
芝加哥风格引文Powers. Zayd. University of Pennsylvania Press.
MLA引文Powers. Zayd. University of Pennsylvania Press.