Dyfyniad APA

Leo Jones. (2003). New Progress to Proficiency: Self - study student book. Đà Nẵng.

Dyfyniad Arddull Chicago

Leo Jones. New Progress to Proficiency: Self - Study Student Book. Đà Nẵng, 2003.

Dyfyniad MLA

Leo Jones. New Progress to Proficiency: Self - Study Student Book. Đà Nẵng, 2003.

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