TY  - BOOK
AU  - Emery, Edwin.
AU  - Ault, Phillip H.,
AU  - Agee, Warren Kendall,
TI  -  Introduction to mass communications
U1  - 384 
PY  - 1965///
CY  - New York
PB  -  Dodd, Mead
KW  - Mass media
N1  - Includes bibliographical references (p. 399-422)
ER  -