APA (7th ed.) Citation
Swan, M., & Walter, C. (1997). How English Works: A grammar practice book (3.Ed.). The University Press.
Chicago Style (17th ed.) Citation
Swan, Michael, and Catherine Walter. How English Works: A Grammar Practice Book. 3.Ed. Oxford: The University Press, 1997.
MLA (9th ed.) Citation
Swan, Michael, and Catherine Walter. How English Works: A Grammar Practice Book. 3.Ed. The University Press, 1997.
Warning: These citations may not always be 100% accurate.