Helgesen, M., Brown, S., & Smith, D. (1997). Active listening: Expanding understanding through content : teachers edition 3. Cambridge: Cambridge University Press.
Chicago ZitierstilHelgesen, Marc., Steven Brown, und Dorolyn Smith. Active Listening: Expanding Understanding Through Content : Teachers Edition 3. Cambridge: Cambridge University Press, 1997.
MLA ZitierstilHelgesen, Marc., Steven Brown, und Dorolyn Smith. Active Listening: Expanding Understanding Through Content : Teachers Edition 3. Cambridge: Cambridge University Press, 1997.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.