Helgesen, M. (1999). Active listening: Expanding understanding through content. New York: Cambridge University.
Dyfyniad Arddull ChicagoHelgesen, Marc. Active Listening: Expanding Understanding Through Content. New York: Cambridge University, 1999.
Dyfyniad MLAHelgesen, Marc. Active Listening: Expanding Understanding Through Content. New York: Cambridge University, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.