Special English workbook. (1972). Special English workbook: A list of words used in the Voice of America's radio broadcasts in special English: Special English Word Book. Washington: VOA.
Trích dẫn kiểu ChicagoSpecial English workbook. Special English Workbook: A List of Words Used in the Voice of America's Radio Broadcasts in Special English: Special English Word Book. Washington: VOA, 1972.
Deismireacht MLASpecial English workbook. Special English Workbook: A List of Words Used in the Voice of America's Radio Broadcasts in Special English: Special English Word Book. Washington: VOA, 1972.
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