APA

Hewings M., . (1999). Advanced Grammar in Use. New York: Cambridge University Press.

Chicago

Hewings M, . 1999. Advanced Grammar in Use. New York: Cambridge University Press.

Harvard

Hewings M., . (1999). Advanced Grammar in Use. New York: Cambridge University Press.

MLA

Hewings M, . Advanced Grammar in Use. New York: Cambridge University Press. 1999.