Jones, L. (2002). New progress to proficiency: Self-study student's book. Cambridge: Canbridge University.
Trích dẫn kiểu ChicagoJones, Leo. New Progress to Proficiency: Self-study Student's Book. Cambridge: Canbridge University, 2002.
MLA citiranjeJones, Leo. New Progress to Proficiency: Self-study Student's Book. Cambridge: Canbridge University, 2002.
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