Cita APA (7a ed.)

Bradford, B. (1988). Intonation in context: Intonation practice for upper-intermediate and advanced learners of english. Cambridge University.

Cita Chicago Style (17a ed.)

Bradford, Barbara. Intonation in Context: Intonation Practice for Upper-intermediate and Advanced Learners of English. Cambridge: Cambridge University, 1988.

Cita MLA (9a ed.)

Bradford, Barbara. Intonation in Context: Intonation Practice for Upper-intermediate and Advanced Learners of English. Cambridge University, 1988.