Helgesen. (1996). Active listening expanding: Understanding through content- Level 3. Cambridge: Cambridge University Press.
Trích dẫn kiểu ChicagoHelgesen. Active Listening Expanding: Understanding Through Content- Level 3. Cambridge: Cambridge University Press, 1996.
MLA引文Helgesen. Active Listening Expanding: Understanding Through Content- Level 3. Cambridge: Cambridge University Press, 1996.
警告:这些引文格式不一定是100%准确.