Underhill, N., & Nic Underhill. (1987). Testing spoken language: A handbook of oral testing techniques. Cambridge [Cambridgeshire],New York: Cambridge University Press.
Stile di citazione ChicagoUnderhill, Nic, e Nic Underhill. Testing Spoken Language: A Handbook of Oral Testing Techniques. Cambridge [Cambridgeshire],New York: Cambridge University Press, 1987.
Citazione MLAUnderhill, Nic, e Nic Underhill. Testing Spoken Language: A Handbook of Oral Testing Techniques. Cambridge [Cambridgeshire],New York: Cambridge University Press, 1987.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.