Cita APA (7a ed.)

Roach, P. (1993). English phonetics and phonology: A practical course (2nd ed.). University Press.

Cita Chicago Style (17a ed.)

Roach, Peter. English Phonetics and Phonology: A Practical Course. 2nd ed. Cambridge [etc.]: University Press, 1993.

Cita MLA (9a ed.)

Roach, Peter. English Phonetics and Phonology: A Practical Course. 2nd ed. University Press, 1993.