TY  - BOOK
AU  - DeFleur,Melvin L.
AU  - Ball-Rokeach,Sandra J.
TI  - Theories of mass communication
PY  - 1975///
CY  - New York
PB  - David McKay Company
KW  - Mass media
KW  - Social aspects
N1  - Includes bibliographical references and index
ER  -