Brown, S., & Smith, D. (2007). Active listening. Cambridge: Cambridge University Press.
Chicago Style aipamenaBrown, Steven, và Dorolyn Smith. Active Listening. Cambridge: Cambridge University Press, 2007.
MLA aipamenaBrown, Steven, và Dorolyn Smith. Active Listening. Cambridge: Cambridge University Press, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.