Gower, R. (2006). Grammar in practice 6 (First edition.). Cambridge University Press.
Chicago Style (17th ed.) CitationGower, Roger. Grammar in Practice 6. First edition. Cambridge: Cambridge University Press, 2006.
MLA引文Gower, Roger. Grammar in Practice 6. First edition. Cambridge University Press, 2006.
警告:這些引文格式不一定是100%准確.