Cita APA (7a ed.)

Roach, P. (1991). English phonetics and phonology: A practical course (2nd ed.). Cambridge University Press.

Cita Chicago Style (17a ed.)

Roach, Peter. English Phonetics and Phonology: A Practical Course. 2nd ed. Cambridge: Cambridge University Press, 1991.

Cita MLA (8a ed.)

Roach, Peter. English Phonetics and Phonology: A Practical Course. 2nd ed. Cambridge University Press, 1991.