APA

Hewings M., . (1999). Advanced Grammar in Use. S.l: Cambridge University Press.

Chicago

Hewings Martin, . 1999. Advanced Grammar in Use. S.l: Cambridge University Press.

Harvard

Hewings M., . (1999). Advanced Grammar in Use. S.l: Cambridge University Press.

MLA

Hewings Martin, . Advanced Grammar in Use. S.l: Cambridge University Press. 1999.