Eastwood, J. (2006). Oxford practice grammar intermediate with answers. Oxford University Press.
芝加哥风格引文Eastwood, John. Oxford Practice Grammar Intermediate with Answers. Inglaterra: Oxford University Press, 2006.
MLA引文Eastwood, John. Oxford Practice Grammar Intermediate with Answers. Oxford University Press, 2006.
警告：这些引文格式不一定是100％准确.