Cita APA (7th ed.)

Shoemaker, P. J. (1991). Communication concepts 3 Gatekeeping. Sage Pub..

Cita Chicago (17th ed.)

Shoemaker, Pamela J. Communication Concepts 3 Gatekeeping. Newbury Park: Sage Pub., 1991.

Cita MLA (9th ed.)

Shoemaker, Pamela J. Communication Concepts 3 Gatekeeping. Sage Pub., 1991.