Butterfield, J. (2007). Oxford A-Z of English usage. Oxford University Press.
芝加哥风格引文Butterfield, Jeremy. Oxford A-Z of English Usage. Oxford: Oxford University Press, 2007.
MLA引文Butterfield, Jeremy. Oxford A-Z of English Usage. Oxford University Press, 2007.
警告：这些引文格式不一定是100％准确.