Gaya APA
Schement, J, R. (2002).
Encylopedia of Commmunication and Information .
United States of America:
Macmillan Reference.
Gaya MLA
Schement, Jorge, Reina.
"Encylopedia of Commmunication and Information".
United States of America:
Macmillan Reference,
2002.
Computer File.