Helgesen, M., & Brown, S. (1996). Active listening: Introducing skills for understanding (Teacher's ed.). Cambridge University Press.
Citace podle Chicago (17th ed.)Helgesen, Marc, a Steven Brown. Active Listening: Introducing Skills for Understanding. Teacher's ed. Cambridge [England] ; New York, NY: Cambridge University Press, 1996.
Citace podle MLA (8th ed.)Helgesen, Marc, a Steven Brown. Active Listening: Introducing Skills for Understanding. Teacher's ed. Cambridge University Press, 1996.
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