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20251009110631.0 |
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200605s1973 xx |||||||||||||||||spa|d |
| 035 |
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|a 000174654
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| 040 |
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|a AR-BaBNM
|b spa
|e aacr
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| 080 |
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|a 37:621.39
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| 100 |
1 |
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|a Polcyn, Kenneth A.
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| 245 |
1 |
3 |
|a An educator's guide to communication satellite technology
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| 260 |
|
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|a [S.l.] :
|b [s.n.],
|c 1973.
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| 300 |
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|a 99 p.
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| 650 |
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4 |
|a Tecnologías de la información y comunicación
|9 10827
|
| 650 |
|
4 |
|a Satélites artificiales
|9 9955
|
| 650 |
|
4 |
|a Tecnología educativa
|9 11215
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| 650 |
|
4 |
|a Medios de comunicación
|9 8993
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| 942 |
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|2 udc
|c LIBRO
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| 999 |
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|c 164917
|d 164917
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