APA

Hewings M., Haines S., .Grammar and vocabulary for advanced with answers. United States of America: Cambridge University Press, 2015: .

Chicago

Hewings Martin, Haines Simón, .Grammar and vocabulary for advanced with answers. United States of America: Cambridge University Press, 2015: .

Harvard

Hewings M., Haines S., .Grammar and vocabulary for advanced with answers. United States of America: Cambridge University Press, 2015: .

MLA

Hewings Martin, Haines Simón, .United States of America: Cambridge University Press, 2015: . .