TY  - BOOK
AU  - Severin,Werner J.
AU  - Tankard,James W.
TI  - Communication theories: origin, methods, and users in the mass media 
SN  - 0801317037
PY  - 1997///
CY  - New York
PB  - Longman
KW  - Communication
KW  - Mass media
N1  - Includes index
ER  -