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s1973 s1973 sz ||||| eng |
| 035 |
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|a 115501
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| 040 |
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|a Sistema de Bibliotecas de la Universidad de Costa Rica
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| 041 |
0 |
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|a eng
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| 082 |
0 |
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|a 333.720.63
|b E51c
|2 00
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| 100 |
1 |
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|a Elliot, Hugh F.I
|e Autor/a
|4 aut
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| 245 |
1 |
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|a Conservation and development :
|b papers and proceedings IUCN'S Twelfth Technical Meeting, Banff, Alberta, Canada, 1972.
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| 260 |
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|a Morges, Switzerland,
|c 1973.
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| 300 |
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|a 387 páginas
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| 490 |
0 |
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|a IUCN publications new series ;
|v no. 2)
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| 500 |
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|a Texto tambien en: Frances.
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| 650 |
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|a RECURSOS NATURALES
|x CONGRESOS
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| 949 |
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|a LA. b SR.
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| 916 |
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|a Registros del LS-2000
|