TY  - BOOK
AU  - Schrank,Jeffrey
TI  - Understanding mass media / 
SN  - 0844256900
AV  - P91.2 .S38 1991
U1  - 302.23/ S376u 23
PY  - 1991///.
CY  - Lincolnwood, Ill.
PB  - National Textbook Co.
KW  - Mass media
KW  - Juvenile literature
N1  - Includes index
N2  - A textbook examining the importance of the mass media as means of communication and as shapers of the environment
ER  -