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    Start Over You searched for: Publication Year 1980 Remove constraint Publication Year: 1980 Subject Term audiovisual media Remove constraint Subject Term: audiovisual media

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    2. Communication and grass-roots development in Latin America

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    3. Communication and grass-roots development in Latin America : Peru - photomontage to promote learning and participation

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    4. Impact of communications technology on productivity of land

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    5. Use of slide-tape and videocassettes in County Extension office self-teaching centers

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