Marc Helgesen. (1996). Active listening expanding - students'book 3: Expanding understanding through content. Cambridge, UK: Cambridge university press.
Chicago-стиль цитированияMarc Helgesen. Active Listening Expanding - Students'book 3: Expanding Understanding Through Content. Cambridge, UK: Cambridge university press, 1996.
MLA-цитированиеMarc Helgesen. Active Listening Expanding - Students'book 3: Expanding Understanding Through Content. Cambridge, UK: Cambridge university press, 1996.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.