Hull, J., Proctor, S., Richards, J. C., & Đỗ, Q. T. (2001). New interchange student's & workbook 3: English for international communication. Hà Nội: Thanh niên.
Chicago-tyylinen lähdeviittausHull, Jonathan, Susan Proctor, Jack C. Richards, ja Quang Thái Đỗ. New Interchange Student's & Workbook 3: English for International Communication. Hà Nội: Thanh niên, 2001.
MLA-viiteHull, Jonathan, Susan Proctor, Jack C. Richards, ja Quang Thái Đỗ. New Interchange Student's & Workbook 3: English for International Communication. Hà Nội: Thanh niên, 2001.
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