TY  - BOOK
AU  - Hall,Robert W.
TI  - Media math: basic techniques of media evaluation 
SN  - 0844231282
U1  - 659.10151 
PY  - 1991///
CY  - Lincolnwood, Ill.
PB  - NTC Business Books
KW  - Advertising media planning
KW  - Mathematics
ER  -