Stempleski, S., & London, A. (2007). Talk time: Test booklet 2. Oxford: Oxford Univ. Press.
Chicago Style aipamenaStempleski, Susan, và Andy London. Talk Time: Test Booklet 2. Oxford: Oxford Univ. Press, 2007.
MLA aipamenaStempleski, Susan, và Andy London. Talk Time: Test Booklet 2. Oxford: Oxford Univ. Press, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.