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20110621160006.0 |
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110617s1987 iaua 000 eng d |
| 020 |
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|a 0877451508
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| 040 |
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|a Sistema de Bibliotecas de la Universidad Nacional de Costa Rica
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|a 598
|b S629h
|2 21
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|a Skutch, Alexander Frank,
|d 1904-2004
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|a Helpers at birds' nests :
|b a worldwide survey of cooperative breeding and related behavior /
|c Alexander F. Skutch, by illustrated by Dana Gardner.
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| 250 |
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|a 1. ed.
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| 260 |
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|a Iowa :
|b University of Iowa Press,
|c ©1987.
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| 300 |
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|a 298 p. :
|b il. ;
|c 25 cm.
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|a AVES
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| 650 |
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|a COMPORTAMIENTO
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| 650 |
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|a BIODIVERSIDAD
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| 650 |
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|a COMPORTAMIENTO ANIMAL
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