Citazione Stile APA (7a Edizione)

Bradford, B. (1988). Intonation in context: Intonation practice for upper-intermediate and advanced learners of english (1a. ed.). Cambridge University Press.

Citazione stile Chigago Style (17a edizione)

Bradford, Barbara. Intonation in Context: Intonation Practice for Upper-intermediate and Advanced Learners of English. 1a. ed. Cambridge: Cambridge University Press, 1988.

Citatione MLA (9a ed.)

Bradford, Barbara. Intonation in Context: Intonation Practice for Upper-intermediate and Advanced Learners of English. 1a. ed. Cambridge University Press, 1988.