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6nork Forbes, R. J. (Robert James), 1900-Gaiak “...Technology and civilization....”
Argitaratua 1971
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7nork Walker, Charles R. (Charles Rumford), 1893-Gaiak “...Technology and civilization....”
Argitaratua 1968
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8nork Walker, Charles R. (Charles Rumford), 1893-Gaiak “...Technology and civilization....”
Argitaratua 1962
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10Argitaratua 1972Gaiak “...Technology and civilization Congresses....”
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11nork McLuhan, Marshall, 1911-1980Gaiak “...Technology and civilization....”
Argitaratua 1969
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15Argitaratua 1973GaiakLiburua
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