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roper organization inc
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Changing public attitudes toward television and other mass media, 1959-1976
Roper Organization Inc. · Television Information Office
24 sayfa · 1977
Public opinion / Television broadcasting / Mass media
What people think of television and other mass media, 1959-1972
Roper Organization, inc., New York · Television Information Office
29 sayfa · 1973
Readership surveys / Television viewers