Cita APA (7a ed.)

(1997). Messages 4: The Washhington media companion. Allyn and Bacon.

Cita Chicago Style (17a ed.)

Messages 4: The Washhington Media Companion. Boston: Allyn and Bacon, 1997.

Cita MLA (9a ed.)

Messages 4: The Washhington Media Companion. Allyn and Bacon, 1997.