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| 020 |
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|a 968-18-4468-6
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| 040 |
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|a Sistema Bibliotecario Universidad de El Salvador
|b spa
|
| 082 |
|
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|a 378.242
|b M553c
|
| 100 |
|
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|a Mercado H., Salvador
|9 4654
|
| 245 |
|
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|a ¿Cómo hacer una tesis? :
|b tesinas, informes, memorias, seminarios de investigación y monografías /
|c Salvador Mercado H.
|
| 250 |
|
|
|a 2§ ed.
|
| 260 |
|
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|a México, D. F. :
|b Limusa,
|c 1997
|
| 300 |
|
|
|a 294
|
| 336 |
|
|
|2 rdacontent
|a texto
|b txt
|
| 337 |
|
|
|2 rdamedia
|a sin mediación
|b n
|
| 338 |
|
|
|2 rdacarrier
|a volumen
|b nc
|
| 650 |
|
|
|a INVESTIGACION DOCUMENTAL
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| 650 |
|
|
|a METODOS DE INVESTIGACION
|
| 942 |
|
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|c BK
|2 ddc
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