ROACH, P. (1993). English phonetics and phonology: A practical course.--Ed.2. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)ROACH, Peter. English Phonetics and Phonology: A Practical Course.--Ed.2. Cambridge: Cambridge University Press, 1993.
Lua MLA (9ú heag.)ROACH, Peter. English Phonetics and Phonology: A Practical Course.--Ed.2. Cambridge University Press, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.