Leo Jones. (2003). New Progress to Proficiency: Self - study student book. Đà Nẵng.
シカゴスタイル引用形Leo Jones. New Progress to Proficiency: Self - Study Student Book. Đà Nẵng, 2003.
MLA引用形式Leo Jones. New Progress to Proficiency: Self - Study Student Book. Đà Nẵng, 2003.
警告: この引用は必ずしも正確ではありません.