Philpot, S., & Curnick, L. (2013). Headway academic skills introductory level: Listening, speaking, and study skills. United Kingdom: Oxford.
Citación estilo ChicagoPhilpot, Sarah, y Lesley Curnick. Headway Academic Skills Introductory Level: Listening, Speaking, and Study Skills. United Kingdom: Oxford, 2013.
Cita MLAPhilpot, Sarah, y Lesley Curnick. Headway Academic Skills Introductory Level: Listening, Speaking, and Study Skills. United Kingdom: Oxford, 2013.
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