Cita APA (7a ed.)

Bozman, T. (1988). Sound barriers: A practise book for spanish students of english phonetics. Universidad, Servicio de Publicaciones.

Cita Chicago Style (17a ed.)

Bozman, Timothy. Sound Barriers: A Practise Book for Spanish Students of English Phonetics. Zaragoza: Universidad, Servicio de Publicaciones, 1988.

Cita MLA (9a ed.)

Bozman, Timothy. Sound Barriers: A Practise Book for Spanish Students of English Phonetics. Universidad, Servicio de Publicaciones, 1988.