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