Citazione Stile APA (7a Edizione)

Murphy, R. (1989). English grammar in use. A reference and practice book for intermediate students. Cambridge University Press.

Citazione stile Chigago Style (17a edizione)

Murphy, Raymond. English Grammar in Use. A Reference and Practice Book for Intermediate Students. Bath: Cambridge University Press, 1989.

Citatione MLA (9a ed.)

Murphy, Raymond. English Grammar in Use. A Reference and Practice Book for Intermediate Students. Cambridge University Press, 1989.