Upstream: Upper Intermediate B2+: Workbook (аудиокурс на 3 CD)
Автор:Bob Obee, Virginia Evans Год: 2014 Издание:Express Publishing UPSTREAM: UPPER INTERMEDIATE B2+ is a modular secondary-level course for learners of the English language at upper-intermediate level. The series combines active English learning with a variety of lively topics presented in themed units. Диски являются аудиоприложением к рабочей тетради.
