APA

Swan M., Walter C., . (2004). How English Works A grammar practice book. New York: Oxford University Press.

Chicago

Swan M, Walter C, . 2004. How English Works A grammar practice book. New York: Oxford University Press.

Harvard

Swan M., Walter C., . (2004). How English Works A grammar practice book. New York: Oxford University Press.

MLA

Swan M, Walter C, . How English Works A grammar practice book. New York: Oxford University Press. 2004.