Citazione Stile APA (7a Edizione)

CORNISH, T., & HORNCASTLE, B. (1991). Central news: Activity book 4. Oxford Univ. Press.

Citazione stile Chigago Style (17a edizione)

CORNISH, Tony, e Bill HORNCASTLE. Central News: Activity Book 4. New York: Oxford Univ. Press, 1991.

Citatione MLA (9a ed.)

CORNISH, Tony, e Bill HORNCASTLE. Central News: Activity Book 4. Oxford Univ. Press, 1991.