Cita APA (7th ed.)
Hoppe, M. H. (2006). Active listening: Improve your ability to listen and lead. Center for Creative Leadership.
Cita Chicago (17th ed.)
Hoppe, Michael H. Active Listening: Improve Your Ability to Listen and Lead. Greensboro, N.C.: Center for Creative Leadership, 2006.
Cita MLA (9th ed.)
Hoppe, Michael H. Active Listening: Improve Your Ability to Listen and Lead. Center for Creative Leadership, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.