TY  - BOOK
AU  - Wimmer,Roger D.
TI  - Mass media research: an introduction 
SN  - 0534647189
AV  - P91.3 .W47 2006
PY  - 2006///
CY  - Belmont, CA
PB  - Thomson, Wadsworth
KW  - Mass media
KW  - Research
N1  - Includes bibliographical references and indexes
ER  -