APA (7th ed.) Zitazioa

Gower, R. (2004). Grammar in practice 3 (First edition.). Cambridge University Press.

Chicago Style (17th ed.) Zitazioa

Gower, Roger. Grammar in Practice 3. First edition. Cambridge: Cambridge University Press, 2004.

MLA (9th ed.) Zitazioa

Gower, Roger. Grammar in Practice 3. First edition. Cambridge University Press, 2004.