UNDERHILL, N. (1987). Testing spoken language: A handbook of oral testing.. Cambridge Univ. Press.
Lua i Stíl Chicago (17ú heag.)UNDERHILL, Nic. Testing Spoken Language: A Handbook of Oral Testing.. New York: Cambridge Univ. Press, 1987.
Lua MLA (9ú heag.)UNDERHILL, Nic. Testing Spoken Language: A Handbook of Oral Testing.. Cambridge Univ. Press, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.