Cita APA

Helgesen, M., Brown, S., & Smith, D. (1996). Active listening: Expanding understanding through content : student's book 3. Cambridge: Cambridge University Press.

Citación estilo Chicago

Helgesen, Marc, Steven Brown, y Dorolyn Smith. Active Listening: Expanding Understanding Through Content : Student's Book 3. Cambridge: Cambridge University Press, 1996.

Cita MLA

Helgesen, Marc, Steven Brown, y Dorolyn Smith. Active Listening: Expanding Understanding Through Content : Student's Book 3. Cambridge: Cambridge University Press, 1996.