Hancock, M., & McDonald, A. (2013). English Result: Intermediate Student's book (3a ed.). Oxford University.
Cita Chicago Style (17a ed.)Hancock, Mark, y Annie McDonald. English Result: Intermediate Student's Book. 3a ed. Oxford: Oxford University, 2013.
Cita MLA (8a ed.)Hancock, Mark, y Annie McDonald. English Result: Intermediate Student's Book. 3a ed. Oxford University, 2013.
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