UNDERHILL, N. (1987). Testing spoken language: A handbook of oral testing.. Cambridge Univ. Press.
Chicago Style (17. basım) AtıfUNDERHILL, Nic. Testing Spoken Language: A Handbook of Oral Testing.. New York: Cambridge Univ. Press, 1987.
MLA (9th ed.) AtıfUNDERHILL, Nic. Testing Spoken Language: A Handbook of Oral Testing.. Cambridge Univ. Press, 1987.
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