Swan, M., & Lê Ngọc Phương Anh. (2010). Practical English usage (Second edition.). Tp. HCM: Trẻ.
Citación estilo ChicagoSwan, Michael., y Lê Ngọc Phương Anh. Practical English Usage. Second edition. Tp. HCM: Trẻ, 2010.
Cita MLASwan, Michael., y Lê Ngọc Phương Anh. Practical English Usage. Second edition. Tp. HCM: Trẻ, 2010.
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