Naber, T., Blackwell, A., & Johnstone, M. (2003). English knowhow. Oxford University Press.
Cita Chicago Style (17a ed.)Naber, Therese, Angela Blackwell, y Michelle Johnstone. English Knowhow. New York: Oxford University Press, 2003.
Cita MLA (8a ed.)Naber, Therese, et al. English Knowhow. Oxford University Press, 2003.
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