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20190506075417.0 |
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|a Sistema de Bibliotecas de la Universidad Nacional de Agricultura
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|a Bemski, George
|9 7957
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| 245 |
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|a Semiconductores /
|c George, Bemski
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| 250 |
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|a
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| 260 |
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|a Caracas, Venezuela,
|b Organización de los Estados Americanos,
|c 1970
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| 300 |
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|a 60 p.
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| 650 |
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| 942 |
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