TY  - BOOK
AU  - Hiebert,Ray Eldon
AU  - Ungurait,Donald F.
TI  - Mass media VI: an introduction to modern communication
SN  - 0801304539
PY  - 1990///
CY  - New York
PB  - Longman
KW  - Mass media
KW  - Communication
N1  - p. 641-648
ER  -