Hawkins, E. (1990). Spoken and written language ([5th pr.].). Cambridge, United Kingdom: Cambridge University Press.
Citación estilo ChicagoHawkins, Eric. Spoken and Written Language. [5th pr.]. Cambridge, United Kingdom: Cambridge University Press, 1990.
Cita MLAHawkins, Eric. Spoken and Written Language. [5th pr.]. Cambridge, United Kingdom: Cambridge University Press, 1990.
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