TY  - BOOK
AU  - DeFleur,Melvin L.
TI  - Mass communication theories: explaining origins, processes, and effects 
SN  - 9781138441415
AV  - P 90 DEF
PY  - 2010///
CY  - London
PB  - Routledge
KW  - Mass media
N1  - Includes index
ER  -