Brown, S. (2007). Active listening 2. Cambridge (New York): Cambridge University Press.
Chicago Style aipamenaBrown, Steven. Active Listening 2. Cambridge (New York): Cambridge University Press, 2007.
MLA aipamenaBrown, Steven. Active Listening 2. Cambridge (New York): Cambridge University Press, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.