Swan, M. (1997). How English works :: A grammar practice book with answers. Oxford: Oxford University Press.
Chicago Style CitationSwan, Michael. How English Works :: A Grammar Practice Book With Answers. Oxford: Oxford University Press, 1997.
MLA CitationSwan, Michael. How English Works :: A Grammar Practice Book With Answers. Oxford: Oxford University Press, 1997.
Warning: These citations may not always be 100% accurate.