Elbaum, S. N. (1986). Grammar in context: Book one. London: HarperCollinsPublishers.
Citación estilo ChicagoElbaum, Sandra N. Grammar in Context: Book One. London: HarperCollinsPublishers, 1986.
Cita MLAElbaum, Sandra N. Grammar in Context: Book One. London: HarperCollinsPublishers, 1986.
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