TY  - BOOK
AU  - Unesco
AU  - Unesco
TI  - World communications: a 200-century survey of press, radio, television, and film
SN  - 0-89059-001-X
AV  - P 90 W64
PY  - 1975///
CY  - Epping, Eng., New York
PB  - Gower, Unipub
KW  - Medios de comunicación masiva
N1  - First and 2d ed. published by the Division of Free Flow ofInformation of Unesco ; 3d ed. published by the Dept. of Mass Communications of Unesco; Incluye bibliografía
ER  -