Cita APA (7a ed.)

Tibbitts, E., & Wilson, A. (1968). The Sound of English. Oxford University Press.

Cita Chicago Style (17a ed.)

Tibbitts, E.L, y A.C Wilson. The Sound of English. London: Oxford University Press, 1968.

Cita MLA (9a ed.)

Tibbitts, E.L, y A.C Wilson. The Sound of English. Oxford University Press, 1968.