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|a 001.5-H47
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|a Hellman, Hal
|9 14458
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|a Nueva era de las comunicaciones
|c Hal Hellman
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| 260 |
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|a Buenos Aires
|b Marymar
|c 1978
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| 300 |
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|a 175 p.
|b il.
|c 23cm.
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|a (Colección Ciencia Nueva)
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|a Bibliografía: p. 170-173
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| 534 |
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|t Traducción de: Communications in the world of the future
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|a COMUNICACION
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