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|a 8429451285
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|a 9233032205
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|a Sistema Bibliotecario Universidad de El Salvador
|b spa
|
| 082 |
|
4 |
|2 21
|a 507.2
|b I546
|
| 245 |
|
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|a Informe mundial sobre la Ciencia 1996 /
|c [elaborado por la secretaría de la UNESCO]
|
| 264 |
|
|
|a Madrid :
|b Santillana ;
|b Ediciones Unesco ;
|c 1996
|
| 300 |
|
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|a 372 páginas ;
|c 30 cm.
|
| 336 |
|
|
|2 rdacontent
|a texto
|b txt
|
| 337 |
|
|
|2 rdamedia
|a sin mediación
|b n
|
| 338 |
|
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|2 rdacarrier
|a volumen
|b nc
|
| 490 |
|
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|a Aula XXI
|v 63
|
| 521 |
|
|
|a general
|
| 650 |
|
|
|2 LEMB
|a Investigación y desarrollo
|
| 650 |
|
|
|2 LEMB
|a Ciencia
|x Indicadores
|
| 710 |
|
|
|a UNESCO.
|b Secretaria
|
| 942 |
|
|
|2 ddc
|c BK
|
| 952 |
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|0 0
|1 0
|2 ddc
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|6 507_200000000000000_I546
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|9 335797
|a 10
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|d 2019-01-29
|o 507.2 I546
|p 10036413
|r 2019-01-29
|w 2019-01-29
|y R
|