search query: @author Twyman, T. / total: 3
references: 1-3 / 3
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1.
The state of media research.
Journal of the Market Research Society
1979 : OCT, VOL. 21:4, p. 221-227
 1979 Twyman, T.
2.
The impact of economic change on the evaluation of advertising campaigns.
Market Research Society Journal
1978 : 2 APR VOL.20 p.73-85
 1978 Bloom, D.
Twyman, T.
3.
New JICTAR survey on commercial breaks.
Marketing
1978 : APR p.53,55-56
 1978 Twyman, T.
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