Cita APA (7th ed.)

Strange, D. (1989). Chatterbox: Pupil's book (1a. ed.). Oxford University.

Cita Chicago (17th ed.)

Strange, Derek. Chatterbox: Pupil's Book. 1a. ed. Oxford: Oxford University, 1989.

Cita MLA (9th ed.)

Strange, Derek. Chatterbox: Pupil's Book. 1a. ed. Oxford University, 1989.