Watson, J., & Hill, A. (1997). A dictionary of communication and media studies (4th ed.). Arnold ; Distributed exclusively in the USA by St. Martin's Press.

Watson, James, and Anne Hill. A Dictionary of Communication and Media Studies. 4th ed. London ; New York : New York, NY: Arnold ; Distributed exclusively in the USA by St. Martin's Press, 1997.

Watson, James, and Anne Hill. A Dictionary of Communication and Media Studies. 4th ed. Arnold ; Distributed exclusively in the USA by St. Martin's Press, 1997.