Hutchinson, T., Phạm, T. Đ., & Nguyễn, V. K. (2002). Lifelines: Elementary workbook. Oxford; Hà Nội: Oxford University Press; Văn hóa thông tin.
Παραπομπή Chicago StyleHutchinson, Tom, Trọng Đạt Phạm, και Văn Khoa Nguyễn. Lifelines: Elementary Workbook. Oxford; Hà Nội: Oxford University Press; Văn hóa thông tin, 2002.
Παραπομπή MLAHutchinson, Tom, Trọng Đạt Phạm, και Văn Khoa Nguyễn. Lifelines: Elementary Workbook. Oxford; Hà Nội: Oxford University Press; Văn hóa thông tin, 2002.
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