TY  - BOOK
AU  - Picard Robert G
TI  - Media economics:  Concepts and issues   
T2  - Sage Context Series, 22
SN  - 0083935013
U1  - X:513, M9 
PY  - 1989///
CY  - London
PB  - Sage Publications         
KW  - Advertising
N1  - Bibliography:p126-132; Glossary:p119-123
ER  -