Cita APA (7a ed.)
Washington Post Writers Group. (1991). Messages: The Washington Post media companion. Allyn and Bacon.
Cita Chicago Style (17a ed.)
Washington Post Writers Group. Messages: The Washington Post Media Companion. Boston: Allyn and Bacon, 1991.
Cita MLA (9a ed.)
Washington Post Writers Group. Messages: The Washington Post Media Companion. Allyn and Bacon, 1991.
Precaución: Estas citas no son 100% exactas.