Richards, J. C., Hull, J., & Proctor, S. (2000). New interchange: English for international communication : student's book and workbook. Tp. HCM: Đại học Quốc gia.
Chicago-tyylinen lähdeviittausRichards, Jack C., Jonathan Hull, ja Susan Proctor. New Interchange: English for International Communication : Student's Book and Workbook. Tp. HCM: Đại học Quốc gia, 2000.
MLA-viiteRichards, Jack C., Jonathan Hull, ja Susan Proctor. New Interchange: English for International Communication : Student's Book and Workbook. Tp. HCM: Đại học Quốc gia, 2000.
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