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|a 600
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|a Consejo Nacional de Ciencia y Tecnología
|
| 245 |
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|a Ciencia y tecnología en el mundo
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| 260 |
|
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|a México
|b : CONACYT,
|c 1982.
|
| 300 |
|
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|a 499 p.
|b : il.
|c ; 22 cm.
|
| 490 |
0 |
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|a Ciencia y desarrollo
|
| 504 |
|
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|a Bibliografía: p. 497-499.
|
| 650 |
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|a Tecnología.
|
| 650 |
|
4 |
|a Ciencia
|x Historia.
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| 902 |
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|a DBUV
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| 596 |
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|a 2 22 31 59
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| 942 |
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