Helgesen, M., & Brown, S. (1995). Active listening: Building skills for understanding : teachers edition. New York: Cambridge University Press.
Chicago Style aipamenaHelgesen, Marc., và Steven Brown. Active Listening: Building Skills for Understanding : Teachers Edition. New York: Cambridge University Press, 1995.
MLA aipamenaHelgesen, Marc., và Steven Brown. Active Listening: Building Skills for Understanding : Teachers Edition. New York: Cambridge University Press, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.