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940112s1983 xxu ||||| spa |
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|a 23192
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|a Sistema de Bibliotecas de la Universidad de Costa Rica
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|a spa
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|a 575.016.2
|b N285n
|2 00
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| 110 |
2 |
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|a Encyclopaedia Britannica Films
|e Autor/a
|4 aut
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1 |
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|a Natural selection /
|c produced by Enciclopaedia Britannica Films ; written and produced by David Bennett. --
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| 260 |
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|a Chicago, III. :
|b Encyclopaedia Britannica Educational Corp,
|c c1983.
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| 300 |
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|a 1 videocasete (VHS) (17 min.) :, sonoro color ;
|c 1/2 plg.
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0 |
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|a Preparatoria I. Ecología I
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| 500 |
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|a En espanol.
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|a Sumario: Variaciones que se presentan en las distintas especies, por efectos producidos por el medio ambiente.
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| 650 |
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|a SELECCION NATURAL
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1 |
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|a Bennett, David
|e Autor/a
|4 aut
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| 949 |
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|a LA-LA b LA
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| 916 |
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|a Registros del LS-2000
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