Gaya APA
Schement, J, R. (2002).
Encyclopedia of communication and information : volume 3 POR-ZOO, index .
USA:
Gale Group.
Gaya MLA
Schement, Jorge, Reina.
"Encyclopedia of communication and information : volume 3 POR-ZOO, index".
USA:
Gale Group,
2002.
Text.