Gower, R. (2004). Grammar in practice 3 (First edition.). Cambridge University Press.
芝加哥风格引文Gower, Roger. Grammar in Practice 3. First edition. Cambridge: Cambridge University Press, 2004.
MLA引文Gower, Roger. Grammar in Practice 3. First edition. Cambridge University Press, 2004.
警告：这些引文格式不一定是100％准确.