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|a 300
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|a Leff, Enrique
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|a Ciencia, técnica y sociedad
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|a México
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|c 1977
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|a 179 p.
|b : il.
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|a ANUIES, Temas Básicos
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|a Bibliografía: p. 171-176.
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|a Ciencia
|z México
|x Historia
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| 650 |
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|a Ciencia y civilización
|9 356257
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| 650 |
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|a Ciencia y Estado
|9 356255
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|a 2 12 31
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