Willis. Out of the Mountains. Ohio University Press.
芝加哥风格引文Willis. Out of the Mountains. Ohio University Press.
MLA引文Willis. Out of the Mountains. Ohio University Press.
警告：这些引文格式不一定是100％准确.
APA引文
Willis. Out of the Mountains. Ohio University Press.
芝加哥风格引文Willis. Out of the Mountains. Ohio University Press.
MLA引文Willis. Out of the Mountains. Ohio University Press.