TY  - BOOK
AU  - Gerbner, George.
AU  - Barnouw, Erik.
AU  - Schramm, Wilbur.
TI  - International encyclopedia of communications:volume 3
U1  - 001.510321/BAR 
PY  - 1989///
CY  - New York
PB  - Oxford University Press
KW  - REFERENCE COLLECTION
ER  -