APA

Hewings M., . (2001). Advanced Grammar in Use. S.l: Cambridge University Press.

Chicago

Hewings Martin, . 2001. Advanced Grammar in Use. S.l: Cambridge University Press.

Harvard

Hewings M., . (2001). Advanced Grammar in Use. S.l: Cambridge University Press.

MLA

Hewings Martin, . Advanced Grammar in Use. S.l: Cambridge University Press. 2001.