TY  - BOOK
AU  - De Fleur,Melvin Lawrence
AU  - 
TI  - Theories of mass communication
SN  - 067930293X
AV  - HM258 .D35 1975
U1  - 301.16 
PY  - 1975///
CY  - New York
PB  - D. McKay Co.
KW  - Mass media
KW  - Social aspects
N1  - Includes bibliographical references and index
ER  -