TY  - BOOK
AU  - DeFleur,Melvin L.
TI  - Mass communication theories: explaining origins, processes and effects 
SN  - 9780205331727
AV  - P90 .D44  2010
U1  - 302.2301 22
PY  - 2010///
CY  - Boston
PB  - Allyn & Bacon
KW  - Mass media
ER  -