Richards, J. C., & Sandy, C. (2001). Passages: An upper-level multi-skills course. 1: Student's book. Cambridge: Cambridge university press.
Chicago-стиль цитированияRichards, Jack C., and Chuck Sandy. Passages: An Upper-level Multi-skills Course. 1: Student's Book. Cambridge: Cambridge university press, 2001.
MLA-цитированиеRichards, Jack C., and Chuck Sandy. Passages: An Upper-level Multi-skills Course. 1: Student's Book. Cambridge: Cambridge university press, 2001.
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