TY  - BOOK
AU  - De Fleur,Melvin L.
TI  - Theories of mass communication
AV  - FCM HM258.D35 
PY  - 1970///
CY  - New York
PB  - David McKay Company, Inc
KW  - Mass media
KW  - Social aspects
KW  - History
N1  - Includes Index
ER  -