Cita APA (7th ed.)

Gower, R. (2002). Grammar in practice 1 (First edition.). Cambridge University Press.

Cita Chicago (17th ed.)

Gower, Roger. Grammar in Practice 1. First edition. Cambridge: Cambridge University Press, 2002.

Cita MLA (9th ed.)

Gower, Roger. Grammar in Practice 1. First edition. Cambridge University Press, 2002.