TY  - BOOK
AU  - Rivers, William L
AU  - Schramm, Wilbur. -jt.auth.
TI  - Responsibility in mass communication
U1  - 301.16 RIV S 
PY  - 1957///
CY  - London : 
PB  - Harper and Row, 
KW  - Communication, Mass
ER  -