Citazione Stile APA (7a Edizione)

UNDERHILL, N. (1987). Testing spoken language: A handbook of oral testing.. Cambridge Univ. Press.

Citazione stile Chigago Style (17a edizione)

UNDERHILL, Nic. Testing Spoken Language: A Handbook of Oral Testing.. New York: Cambridge Univ. Press, 1987.

Citatione MLA (9a ed.)

UNDERHILL, Nic. Testing Spoken Language: A Handbook of Oral Testing.. Cambridge Univ. Press, 1987.