TY  - GEN
AU  - Defleur   Melvin L.
AU  - Ball-Rokeach,  Sandra J.
TI  - Theories of mass communication
SN  - 0582998700
U1  - 302.2 
PY  - 1989///
CY  - New York
PB  - Longman
KW  - Social sciences
KW  - Mass media - Social aspects
ER  -