Freedman. Willing and Unable. Vanderbilt University Press.
芝加哥风格引文Freedman. Willing and Unable. Vanderbilt University Press.
MLA引文Freedman. Willing and Unable. Vanderbilt University Press.
警告：这些引文格式不一定是100％准确.
APA引文
Freedman. Willing and Unable. Vanderbilt University Press.
芝加哥风格引文Freedman. Willing and Unable. Vanderbilt University Press.
MLA引文Freedman. Willing and Unable. Vanderbilt University Press.