Cita APA

Helgesen, M., & Brown, S. (1994). Active Listening: Building Skills for Understanding. Cambridge: Cambridge University.

Citación estilo Chicago

Helgesen, Marc, y Steve Brown. Active Listening: Building Skills for Understanding. Cambridge: Cambridge University, 1994.

Cita MLA

Helgesen, Marc, y Steve Brown. Active Listening: Building Skills for Understanding. Cambridge: Cambridge University, 1994.