Helgesen, M., Brown, S., & Smith, D. (1997). Active listening: Expanding understanding through content : teacher's edition 3. Cambridge: Cambridge University Press.
Chicago-стиль цитированияHelgesen, Marc, Steven Brown, và Dorolyn Smith. Active Listening: Expanding Understanding Through Content : Teacher's Edition 3. Cambridge: Cambridge University Press, 1997.
MLA-цитированиеHelgesen, Marc, Steven Brown, và Dorolyn Smith. Active Listening: Expanding Understanding Through Content : Teacher's Edition 3. Cambridge: Cambridge University Press, 1997.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.