Beretta, A., & Alderson, J. C. (1992). Evaluating second language education. Cambridge University Press.
Cita Chicago Style (17a ed.)Beretta, Alan, y J. Charles Alderson. Evaluating Second Language Education. Cambridge, United Kingdom: Cambridge University Press, 1992.
Cita MLA (9a ed.)Beretta, Alan, y J. Charles Alderson. Evaluating Second Language Education. Cambridge University Press, 1992.
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